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Safran CORTEX CRT Quantum, User Manual


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COMMAND RANGING & TELEMETRY UNIT CORTEX 

CRT QUANTUM USER'S MANUAL

 

Ref. 

DTU 100042

   

Is.Rev. 

5.17

 

Date:

 

Dec. 03, 2021Sept. 

30, 2021

 

 

 

 
 
 

© Safran Data Systems 

This document is the property of 

Safran Data Systems

. 

 It cannot be duplicated or distributed without expressed written consent.

 

Page xiii 

 

F

IGURE 

22:

 

2

ND 

O

RDER 

PLL

 

T

RACKING CAPACITY

 ............................................................................................................ 46

 

F

IGURE 

23:

 

3

RD 

O

RDER 

PLL

 

T

RACKING CAPACITY

 ............................................................................................................. 47

 

F

IGURE 

24:

 

P

OST DETECTION 

D

IVERSITY 

C

OMBINING 

:

 FUNCTIONAL BLOCK DIAGRAM

 ................................................ 53

 

F

IGURE 

25:

 

P

RE DETECTION 

D

IVERSITY 

C

OMBINING 

:

 FUNCTIONAL BLOCK DIAGRAM

 ....................................................... 54

 

F

IGURE 

26

 

:

 

P

OST DETECTION 

D

IVERSITY 

C

OMBINING OUTPUTS

 .................................................................................... 55

 

F

IGURE 

27:

 

P

RE DETECTION 

D

IVERSITY 

C

OMBINING OUTPUTS

 .......................................................................................... 56

 

F

IGURE 

28:

 

P

ROBABILITY OF 

B

IT 

E

RROR VERSUS 

E

B

/N

O

.

 .................................................................................................. 62

 

F

IGURE 

29:

 

P

ROBABILITY OF 

B

IT 

E

RROR VERSUS 

E

B

/N

O

.

 

R

EF 

:

 

CCSDS

 

413.0-G-2

 

(§

 

B2.3),

 

O

CTOBER 

2009

 .................. 63

 

F

IGURE 

30:

 

CRT

 

P

ERFORMANCE VERSUS 

CCSDS

 

S

IMULATIONS

 ....................................................................................... 64

 

F

IGURE 

31:

 

P

ROBABILITY OF 

B

IT 

E

RROR VERSUS 

E

B

/N

O

.

 .................................................................................................. 71

 

F

IGURE 

32:

 

P

ROBABILITY OF 

B

IT 

E

RROR VERSUS 

E

B

/N

O

 ................................................................................................... 72

 

F

IGURE 

33:

 

CRT

 

LDPC

 

BER

 PERFORMANCE COMPARED TO 

CCSDS

 

(

R

=1/2,

 K

=4096)

 ..................................................... 74

 

F

IGURE 

34:

 

CCSDS

 

BER

 PERFORMANCE FOR ALL RATES

 .................................................................................................. 75

 

F

IGURE 

35:

 

TM

 

C

HAIN 

:

 

I/O

 

P

ORTS 

(LBW)

 ........................................................................................................................ 76

 

F

IGURE 

36:

 

TM

 

C

HAIN 

:

 

I/O

 

P

ORTS 

(HBW

 WITH SUB

-

CARRIER

)

 ........................................................................................ 78

 

F

IGURE 

37:

 

M

 

C

HAIN 

:

 

I/O

 

P

ORTS 

(HBW

 DIRECT 

PCM)

 .................................................................................................... 81

 

F

IGURE 

38:

 

TM

 

C

HAIN 

:

 

I/O

 

P

ORTS 

(HBW

 DIRECT 

PCM

 WITH 

S

INGLE 

V

ITERBI

)

 ............................................................. 83

 

F

IGURE 

39:

 

TM

 

C

HAIN 

:

 

I/O

 

P

ORTS 

(HBW

 DIRECT 

PCM

 WITH DUAL 

V

ITERBI

)

 ................................................................ 86

 

F

IGURE 

40:

 

TM

 

C

HAIN 

:

 

I/O

 

P

ORTS 

(HBW

 DIRECT 

PCM,

 

D

IFFERENTIAL 

C

ODING

)

 ......................................................... 89

 

F

IGURE 

41:

 

TM

 

C

HAIN 

:

 

I/O

 

P

ORTS 

(HBW

 DIRECT 

PCM

 WITH DUAL 

V

ITERBI

&

 

D

IFFERENTIAL 

D

ECODING

)

 .................. 92

 

F

IGURE 

42:

 

TM

 

C

HAIN 

:

 

I/O

 

P

ORTS 

(HBW

 DIRECT 

PCM

 

AQPSK

 

D

ECODING

)

 ................................................................. 94

 

F

IGURE 

43:

 

F

RAME 

S

YNCHRONIZATION 

P

ROCESS

 .............................................................................................................. 96

 

F

IGURE 

44:

 

S

PECTRUM OF THE TEST SIGNAL

 .................................................................................................................. 104

 

F

IGURE 

45:

 

C

ONSTELLATION OF THE RECEIVED SIGNAL WITHOUT 

DEAF

 ................................................................... 105

 

F

IGURE 

46:

 

C

ONSTELLATION OF THE RECEIVED SIGNAL WITH 

DEAF

 ACTIVATED

 ...................................................... 106

 

F

IGURE 

47:

 

CCSDS

 DESCRAMBLING

 ................................................................................................................................. 107

 

F

IGURE 

48:

 

L

OW 

B

ANDWIDTH 

U

PLINK 

S

CENARIO

 ............................................................................................................ 112

 

F

IGURE 

49:

 

H

IGH 

B

ANDWIDTH 

U

PLINK 

S

CENARIO  WITH 

PCM

 

I

NPUT 

S

IGNAL 

(PM,

 

FM)

 .............................................. 113

 

F

IGURE 

50:

 

H

IGH 

B

ANDWIDTH 

U

PLINK 

S

CENARIO WITH 

PCM

 AND 

V

IDEO 

I

NPUT 

S

IGNALS 

(PM,

 

FM)

 .......................... 114

 

F

IGURE 

51:

 

H

IGH 

B

ANDWIDTH 

U

PLINK 

S

CENARIO 

(BPSK)

 ............................................................................................. 115

 

F

IGURE 

52:

 

H

IGH 

B

ANDWIDTH 

U

PLINK 

S

CENARIO 

(

 

QPSK,

  

OQPSK

 WITHOUT 

C

ONVOLUTIONAL 

E

NCODING

)

 .............. 116

 

F

IGURE 

53:

 

H

IGH 

B

ANDWIDTH 

U

PLINK 

S

CENARIO 

(QPSK,

 

OQPSK

 WITH 

S

INGLE 

C

ONVOLUTIONAL 

E

NCODING

)

 .......... 117

 

F

IGURE 

54:

 

H

IGH 

B

ANDWIDTH 

U

PLINK 

S

CENARIO 

(QPSK,

 

OQPSK

 WITH 

D

UAL 

E

NCODING

)

 ......................................... 117

 

F

IGURE 

55:

 

H

IGH 

B

ANDWIDTH 

U

PLINK 

S

CENARIO 

(QPSK,

  

OQPSK

 WITH 

D

IFFERENTIAL 

E

NCODING

)

 ......................... 117

 

F

IGURE 

56:

 

H

IGH 

B

ANDWIDTH 

U

PLINK 

S

CENARIO 

(QPSK,

  

OQPSK

 WITH 

D

UAL AND 

D

IFFERENTIAL 

E

NCODING

)

 ........ 118

 

F

IGURE 

57:

 

H

IGH 

B

ANDWIDTH 

U

PLINK 

S

CENARIO  

(AQPSK)

 .......................................................................................... 119

 

F

IGURE 

58:

 

IFM

 

O

UTPUT 

S

TAGE 

A

RCHITECTURE

 ............................................................................................................ 120

 

F

IGURE 

59:

 

TMS

 

F

ILE STRUCTURE FOR 

R

EED

-S

OLOMON ENCODING

 ........................................................................... 124

 

F

IGURE 

60:

 

TMS

 

F

ILE STRUCTURE FOR 

T

URBO ENCODING

 ........................................................................................... 125

 

F

IGURE 

61:

 

TMS

 

F

ILE STRUCTURE FOR 

LDPC

 ENCODING

 ............................................................................................ 127

 

F

IGURE 

62:

 

"125

 K

H

Z

"

 FILTER

,

 

-3

 D

B

 BANDWIDTH

:

 

1.36

 

MH

Z

 ..................................................................................... 128

 

F

IGURE 

63:

 

"250

 K

H

Z

"

 FILTER

,

 

-3

 D

B

 BANDWIDTH

:

 

2.06

 

MH

Z

 ..................................................................................... 129

 

F

IGURE 

64:

 

"500

 K

H

Z

"

 FILTER

,

 

-3

 D

B

 BANDWIDTH

:

 

2.4

 

MH

Z

 ....................................................................................... 129

 

F

IGURE 

65:

 

"1

 

MH

Z

"

 FILTER

,

 

-3

 D

B

 BANDWIDTH

:

 

3.66

 

MH

Z

 ........................................................................................ 130

 

F

IGURE 

66:

 

"2

 

MH

Z

"

 FILTER

,

 

-3

 D

B

 BANDWIDTH

:

 

5.5

 

MH

Z

 .......................................................................................... 130

 

F

IGURE 

67:

 

"4

 

MH

Z

"

 FILTER

,

 

-3

 D

B

 BANDWIDTH

:

 

8.46

 

MH

Z

 ........................................................................................ 131

 

F

IGURE 

68:

 

T

ELECOMMAND 

T

IMING

 ................................................................................................................................. 136

 

F

IGURE 

69:

 

S

WEEPING WAVEFORM

 ................................................................................................................................... 138

 

F

IGURE 

70:

 

P

ROCESSING OF THE 

IFM

 

C

ONFIGURATION 

C

OMMANDS

 ........................................................................... 139

 

F

IGURE 

71:

 

S

ATELLITE 

T

ELECOMMANDING 

P

ROTOCOL WITH 

CLCW

 

C

HECK 

&

 

C

ARRIER 

S

WEEPING

 ............................. 140

 

F

IGURE 

72:

 

C

ONFIGURING THE 

S

WEEPING 

M

ODE ON THE 

IFM

 ....................................................................................... 141

 

F

IGURE 

73:

 

R

ANGING 

S

EQUENCE 

F

LOW 

C

HART

 ............................................................................................................... 151

 

F

IGURE 

74:

 

D

OPPLER 

R

ATE 

A

ID 

A

RCHITECTURE

 ............................................................................................................. 161

 

F

IGURE 

75:

 

D

OPPLER 

A

ID 

A

RCHITECTURE

 ....................................................................................................................... 163

 

F

IGURE 

76:

 

R

ANGING 

S

EQUENCE 

(ESA

 

S

TANDARD

)

 ......................................................................................................... 174

 

F

IGURE 

77:

 

R

ANGING 

S

EQUENCE 

(USB

 

S

TANDARD

)

 ........................................................................................................ 176

 

F

IGURE 

78:

 

R

ANGING 

S

EQUENCE 

(INMARSAT/LMCO

 

S

TANDARDS

)

 ............................................................................. 180

 

F

IGURE 

79:

 

R

ANGING 

S

EQUENCE 

(ESA

 

C

ODE 

S

TANDARD WITH 

N

 

=

 

7)

 ............................................................................ 183

 

F

IGURE 

80:

 

R

ANGING 

S

EQUENCE 

(PN

 

C

ODES 

S

TANDARD

)

 ............................................................................................... 188

 

Summary of Contents for CORTEX CRT Quantum

Page 1: ...T CORTEX CRT Quantum CRT QUANTUM USER S MANUAL DTU 100042 Is Rev 5 17 Date Dec 03 2021 Total number of page s 345 Safran Data Systems Site Paris 5 Avenue des Andes CS 90101 91978 COURTABOEUF Cedex FRA...

Page 2: ...weeping sinusoidal 5 11 January 2019 Descrambling with LFSR polynomials NTP time code BPSK Square BER CCSDS standards update COMSAT 4U with EFC Rear Panel Description 5 10 June 2018 CRT Quantum integr...

Page 3: ...be duplicated or distributed without expressed written consent Page iii COPYRIGHT THIS DOCUMENT IS THE PROPERTY OF SAFRAN DATA SYSTEMS UNDER THE COPYRIGHT LAWS IT MUST NOT BE REPRODUCED OR TRANSMITTED...

Page 4: ...e M C 13 1 4 3 2 Signal Processing Software Package 13 1 4 3 3 Monitoring Control Software Package 14 1 4 3 4 Command Operation Procedure Software Package COP 14 1 4 3 5 SLE Gateway Software Package C...

Page 5: ...connection panel 45 2 3 1 2 Full Interconnection panel 3U 46 2 3 2 I O Connectors description 1 2 3 2 1 External interconnection panel 1 2 3 2 2 Integrated panel 6 2 3 3 Industrial Computer Rear Panel...

Page 6: ...de 42 3 3 2 2 1 PM and Coherent AM Demodulation 42 3 3 2 2 2 FM Demodulation 42 3 3 2 2 3 By pass Spectrum and Non Coherent AM Modes 42 3 3 2 3 IF Receiver in PCM Mode 43 3 3 2 3 1 PCM PM Demodulation...

Page 7: ...98 3 3 10 Telemetry Frames or Raw Data 98 3 3 11 Telemetry Data Time Tagging 98 3 3 12 Real Time of Off line Telemetry Server 99 3 3 12 1 Telemetry Request 99 3 3 12 2 Telemetry Buffers 99 3 3 12 3 Te...

Page 8: ...Instruction 135 3 5 1 9 Group Instruction 135 3 5 1 10 Data Execute Instruction 135 3 5 2 Satellite TC Requests and Instructions Sequencing 135 3 5 3 CLCW Checking IF Carrier Sweeping 137 3 5 4 TC Dem...

Page 9: ...ESA ESA like and USB Tone Standards 167 3 6 4 7 2 ESA Code Standard 168 3 6 5 Measurement Time Tagging 169 3 6 6 Ranging Transaction Messages 170 3 6 6 1 Range Measurement 170 3 6 6 2 Calibration Mea...

Page 10: ...ut Frequency 210 3 8 1 2 Input Gain 211 3 8 2 UpLink Channels 212 3 8 2 1 Output Frequency 213 3 8 2 2 Output Level 214 3 8 3 Calibration 214 3 8 4 Reference Clock Interface 215 3 8 5 Interconnection...

Page 11: ...42 4 2 7 3 5 Removal of the Synchronization Word for Frame Checking 242 4 2 7 3 6 Removal of Dummy Frames for TM Storage 242 4 2 7 3 7 Swap G1 and G2 before Viterbi Decoder 243 4 2 7 3 8 Turbo Decodin...

Page 12: ...TIBLE WORKSTATION 265 ANNEX 5 PROJECT SPECIFIC DATA 266 LIST OF FIGURES FIGURE 1 CORTEX CRT QUANTUM FUNCTIONAL BLOCK DIAGRAM 7 FIGURE 2 HARDWARE ARCHITECTURE 8 FIGURE 3 CHASSIS IS00427 FRONT PANEL APP...

Page 13: ...CTIVATED 106 FIGURE 47 CCSDS DESCRAMBLING 107 FIGURE 48 LOW BANDWIDTH UPLINK SCENARIO 112 FIGURE 49 HIGH BANDWIDTH UPLINK SCENARIO WITH PCM INPUT SIGNAL PM FM 113 FIGURE 50 HIGH BANDWIDTH UPLINK SCENA...

Page 14: ...EFC 3 TABLE 8 IS00427 I O CONNECTOR PANEL WITH BNC INTEGRATION AND EXTERNAL I O CONNECTORS 5 TABLE 9 IS00427 I O CONNECTOR PANEL WITH BNC INTEGRATION EXTERNAL I O CONNECTORS AND EFC 7 TABLE 10 CONFIGU...

Page 15: ...ted without expressed written consent Page xv ACRONYMS ABBREVIATIONS SYMBOLS Percent Plus or minus Greater than or equal Less than or equal And Approximately PREFIXES n Nano Micro m Milli k Kilo M Meg...

Page 16: ...W BandWidth CADU Channel Access Data Unit CLCW Command Link Control Word CLK Clock CNR Carrier to Noise Ratio COP Command Operation Procedure CPFSK Continuous Phase Frequency Shift Keying CPU Central...

Page 17: ...Numerically Controlled Oscillator NRZ L M S Non Return to Zero Level Mark Space OQPSK Offset Quadrature Phase Shift Keying also called SQPSK PC Personal Computer PCM Pulse Coded Modulation PLL Phase L...

Page 18: ...without expressed written consent Page xviii TCU Telecommand Unit TM TeleMetry TMS TeleMetry Simulator TMU TeleMetry Unit TVU TC Verification Unit UQPSK Unbalanced Quadrature Phase Shift Keying UTOA...

Page 19: ...lash with an arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous voltage within the product s enclosure that may be of sufficient mag...

Page 20: ...EN 61000 4 5 Limits and methods of measurement Section 5 Surge immunity test EN 61000 4 6 Limits and methods of measurement Section 6 immunity to conducted disturbances induced by radio frequency fiel...

Page 21: ...All equipment marked with this logo must be recycled by an approved Waste Electrical and Electronic Equipment processing facility If desired the equipment can be returned at the customer s expenses t...

Page 22: ...is and enclosure must be connected to an electrical ground Always start with plugging the mechanical ground on the rear panel of the equipment The product must be connected to a protective earth groun...

Page 23: ...esence of flammable gases or fumes Operation of any electrical equipment in such an environment constitutes a definite safety hazard Battery Risk of explosion if battery replaced with an incorrect typ...

Page 24: ...not use at an altitude exceeding 2000m Tropical conditions This product is not suitable for tropical conditions ESD protective measures Electrostatic discharge can damage the electronic components wi...

Page 25: ...Safran Data Systems It cannot be duplicated or distributed without expressed written consent Page xxv INTERNATIONAL SECURITY STATEMENTS France Canada L appareil doit tre connect une prise de terre Suo...

Page 26: ...QUANTUM USER S MANUAL Ref DTU 100042 Is Rev 5 17 Date Dec 03 2021Sept 30 2021 Safran Data Systems This document is the property of Safran Data Systems It cannot be duplicated or distributed without ex...

Page 27: ...eXplorer is a dedicated platform for Deep Space missions It is always integrated in a 4U chassis with 3U full I O panel Embedded frequency converter is not suitable in that case one will prefer Safra...

Page 28: ...s Main Board EFC Section COMSAT SM01037242C Integrated No IS00427 ANA5 No 2 3 3 1 1 S100684 Integrated No IS00452 ANA5 No 2 3 3 1 1 S100686 Integrated No IS00452 ANA5 Yes 2 3 3 1 1 AGENCY AIT SM010372...

Page 29: ...RTEX XL CORTEX XL2 Previous Generations Refer to the Comparison Chart in chapter 1 5 for details of the minor differences between CRT Quantum and CRT XL XL2 The CORTEX CRT Quantum supports all types o...

Page 30: ...entification high or low index mode automatic or manual acquisition Pre Detection and Post Detection Diversity Combining Sub carrier demodulation BPSK PCM PM or PCM FM Bit synchronization PSK and BP L...

Page 31: ...asurement Reception and checking of TCP IP ranging requests from the Ranging Clients Ranging tone or code generation Tone phase tracking IF modulation FM or PM and Doppler compensation Phase shift mea...

Page 32: ...ckage Graphic User Interface Satellite Ranging commanding limited Telemetry Quick Look Probe Selection TM Video TM PCM TC Video D A Conv Video Test Output SIM Video SIM PCM TC PCM Spectrum Analysis Up...

Page 33: ...oard SAFRAN DATA SYSTEMS One Digital I O board associated to the 3U Interconnection panel SAFRAN DATA SYSTEMS One Interconnection Panel directly integrated on chassis for IF and Time Frequency signals...

Page 34: ...PC compatible workstation IS00427 includes see Annex 4 for a detailed description A rack mountable industrial PC chassis 19 inch width 7 inch height A one processor CPU board An integrated 8 inch colo...

Page 35: ...ives at front and rear panels For extended storage purposes additional 2 5 SSD drives can be proposed in option Redundant power supply baseline Figure 4 Chassis IS00452 Front Panel Appearance Front pa...

Page 36: ...xt figure AGC A D AGC A D A D 5 x 4 DIGITAL MATRIX IF RECEIVER 1 IF RECEIVER 2 IF RECEIVER 4 NOMINAL ALTERNATE IF STAGE 1 IF STAGE 2 NOMINAL ALTERNATE AUXILIARY 1 IF RECEIVER 3 A D AUXILIARY 2 AGC A D...

Page 37: ...de the first PCM signal is for I channel and the second for Q channel The carrier frequency is adjustable between 66 and 74 MHz Performing analog filters on the IF output stage ensures proper rejectio...

Page 38: ...es see Annex 5 These softwares are executed under the control of Windows Operating System Software configuration at delivery is described in Annex 5 1 4 3 1 Local or Remote M C The Signal Processing s...

Page 39: ...are also communicates with the Signal Processing software by means of connected sockets under TCP IP protocol 1 4 3 5 SLE Gateway Software Package CSGW The CORTEX SLE Gateway CSGW which is fully integ...

Page 40: ...nd ranging capability etc covering the Customer requirements The configuration of the CORTEX at delivery hardware components licenses is saved to a Flash Memory chip on the MSP module WARNING SWAPPING...

Page 41: ...Hz 10 Hz to 3 kHz 10 Hz to 3 kHz 0 1 Hz to 3 kHz BPSK QPSK OQPSK Yes Yes Yes Yes AQPSK GMSK No Yes Yes Yes 8PSK No No Yes Yes Sine Subcarrier Yes Yes Yes Yes Square Subcarrier No No No Yes Low BW Tele...

Page 42: ...rrier Telecommand 5 kHz to 2 MHz 100 bps to 600 kbps 5 kHz to 2 MHz 100 bps to 600 kbps 5 kHz to 2 MHz 100 bps to 600 kbps 5 kHz to 2 MHz 100 bps to 600 kbps High BW PCM Telecommand 100 bps to 1 Mbps...

Page 43: ...Hz 100 MHz 5 MHz 10 MHz 100 MHz Time code IRIG B122 NASA 36 IRIG B122 NASA 36 IRIG B122 NASA 36 IRIG B122 NASA 36 IRIG B 5MHz Time code max amplitude 10 Vpp 10 Vpp 6 Vpp 6 Vpp Time tag resolution Mill...

Page 44: ...F reception Telemetry processing IF modulation Satellite ranging Satellite telecommanding Telemetry simulation Time code decoding and data time tagging Reference frequency With the optional Embedded F...

Page 45: ...hannels 80 dB Aliasing rejection 80 dB Maximum noise level 20 dBm or No 96 dBm Hz for 40 MHz noise bandwidth AGC range CRT XL Quantum 15 to 105 dBm AGC range CRT eXplorer 15 to 120 dBm AGC time consta...

Page 46: ...bandwidth CRT eXplorer 2nd and 3rd order 0 1Hz 0 3 Hz 1 Hz 3 Hz 10 Hz 30 Hz 100 Hz 300 Hz 1000 Hz 3000 Hz User selectable 0 1 Hz to 3000 Hz Acquisition threshold CRT XL Quantum C No 20 dB Hz for 2Bn 1...

Page 47: ...ets and cumulated phase variations integrated Doppler IF level measurement accuracy 2 dB Diversity combining Pre detection or post detection combining optional Up to 3 dB gain with equal strength sign...

Page 48: ...ksps 10 dB at 100 sps Eb No measurement Yes 0 5 dB accuracy 1 6 1 4 Telemetry Processing 1 6 1 4 1 Low Bandwidth Telemetry Input IF Receiver output Demodulation BPSK direct bit synchronization availab...

Page 49: ...Synchronizer PLL BW CRT eXplorer 10 3 1 0 3 0 1 0 03 or 0 01 of BR Bit Sync acquisition range 4 PLL BW if the PLL BW is set to 0 1 or 0 3 of BR 2 PLL BW if the PLL BW is set to 1 or 3 of BR Acquisiti...

Page 50: ...LTS 0 to 7 frames Bit slippage 0 1 or 2 bits Synchronization word on I or Q Yes Frame filtering 64 bit frame mask CCSDS decoding transfer frame level Convolutional Viterbi Yes Soft decision Yes Bit e...

Page 51: ...uplicated or distributed without expressed written consent Page 26 1 6 1 4 4 Diversity Combining Combining modes Pre detection or post detection Combining algorithms Best channel selection Maximal rat...

Page 52: ...s External analog input 2 Vpp 50 PCM modulation filtering None Raised or Root Raised roll off factor Frequency deviation 0 to 5 MHz Modulation index 0 to 2 5 radians IF output ports per IFM 2 Nominal...

Page 53: ...nds Downlink tone tracking 2nd order digital PLL PLL bandwidth 2 Bn 0 1 to 8 Hz CRT XL Quantum 0 001 to 8 Hz CRT eXplorer Measurement standard deviation 1dB vs theory in the presence of noise Phase me...

Page 54: ...User programmable from 0 1 to 10 seconds TCP IP level Phase measurement resolution 360 211 in degrees Phase values 64 bit words Phase counter capacity 4 years at 70 MHz Doppler data 32 bit frequency...

Page 55: ...etting BPSK BPSK AM BPSK SQUARE Satellite specific modes contact SAFRAN DATA SYSTEMS for more information PCM coding BP L M S NRZ L M S RZ Convolutional coding No Bit rate 10 to 10 000 bps 7 to 10000...

Page 56: ...ime request Idle pattern generation PCM coding as per LBW mode Convolutional coding Yes Modulation BPSK or no sub carrier direct PCM on the carrier Bit rate 100 bps to 1 Mbps direct PCM on the carrier...

Page 57: ...ndwidth setting 64 kbps with LBW extension 7 bps to 19 kbps with PACK EXT License 64 kbps with LBW extension 1 to 600 kbps high bandwidth sub carrier 1 kbps to 20 Mbps high bandwidth direct PCM and 40...

Page 58: ...B code generator for example for accurate time tagging of the ranging Doppler and telemetry data The internal 10 MHz clock accuracy and stability on the Main Signal Processing board allows the CORTEX...

Page 59: ...ge 34 1 6 9 2 Reference Frequency 1 6 9 2 1 External Reference Input port 2 ports Programmable auto selection Frequency 5 10 or 100 MHz sine or square Acquisition range 5 kHz for 100 MHz 500 Hz for 10...

Page 60: ...t level From 20dBm to 105dBm Maximum total power level 20dBm or No 110dBm Hz for 1GHz noise limited bandwidth Independent spurious level 90 dBm signal dependent at max gain in output bandwith Gain 2 m...

Page 61: ...Hz 100 kHz 120dBc Hz 1 MHz Frequency Tuning 0 1 Hz with CRT or 5 Mhz steps alone 1 6 11 Mechanical Environment Industrial PC chassis Height 4 rack spaces for 4U chassis or 2 rack spaces for 2U chassis...

Page 62: ...ferred to in the text as RDx where x corresponds to the document number below CCSDS Recommendations 1 CCSDS Recommendations and Reports ESA Documentation 2 Radio Frequency and Modulation Standard ESA...

Page 63: ...L shaped brackets in order to prevent any scratch on the cover it is not necessary when using slide rails In the front of the 19 cabinet preferably use a 1U blanking plate with a grid to allow the ai...

Page 64: ...ipment from Safran Data Systems can be re used if it has been cleanly cut during unpacking Shipping an unprotected unit may result in damage caused by condensation especially if the unit in shipped fr...

Page 65: ...M USER S MANUAL Ref DTU 100042 Is Rev 5 17 Date Dec 03 2021Sept 30 2021 Safran Data Systems This document is the property of Safran Data Systems It cannot be duplicated or distributed without expresse...

Page 66: ...Annex 4 for an accurate description of the PC compatible workstation The cabling of the PC compatible workstation is described in Annex 4 2 2 Network Interfaces 2 2 1 CPU Board Ethernet Port Connectio...

Page 67: ...is allocated a specific port number which the clients use for connecting themselves to each service Port numbers are listed below including TCP IP ports on the optional COP Software package Data Flow...

Page 68: ...ING SOFTWARE Monitoring Data COP MON Telecommand Data COP TC Segment Level Control Data COP CTRL COP SOFTWARE Ranging Data RNG Telecommand Data TC CLTU Level Telemetry Data TM Simulation Data 1 SIM 2...

Page 69: ...tor of the Digital I O board via a Vport Samtec cable The signals corresponding to Downlink IF inputs except the Auxiliary ones Uplink IF outputs and 5 10 MHz Reference clock inputs are routed to the...

Page 70: ...1 Integrated Simplified Interconnection panel On 4U chassis I O ports are fitted out with 14 BNC female connectors and 8 SMA female connectors Next figure illustrates the integrated panel appearance...

Page 71: ...ge 46 2 3 1 2 Full Interconnection panel 3U I O ports on the Interconnection Panel are all fitted out with BNC female connectors Next figure illustrates the 3U panel appearance The Interconnection Pan...

Page 72: ...CTOR PANEL LABEL CABLE SLEEVE LABEL MSP MODULE CONNECTOR LABEL SIGNAL ELECTRICAL CHARACTERISTICS UPLINK BNC Female NOMINAL IF 1 UL NOM IF1 IF out NOM 1 IFM 1 Nominal IF output port 50 90 MHz 3 dB band...

Page 73: ...Alternate IF input port 1 45 95 MHz 3 dB bandwidth 15 to 120 dBm 50 BNC Female NOMINAL IF 2 DL NOM IF2 IF in NOM 2 Nominal IF input port 2 45 95 MHz 3 dB bandwidth 15 to 120 dBm 50 BNC Female ALTERNA...

Page 74: ...N Note 1 Reference time code input IRIG B122 NASA 36 0 1 to 6 Vpp 100 k BNC Female 5 10 MHz IN1 REF 1 REF 1 Reference clock input 1 5 10 or 100 MHz 0 2 to 5 Vpp DC 4 V 50 BNC Female 5 10 MHz IN2 REF 2...

Page 75: ...5 Female SET 4 Note 2 I O NUM board Data I Data Q Clock IN Data I Data Q Clock OUT See section 2 3 4 2 BNC Female VIDEO 1 VIDEO OUT 1 Note 3 Uplink downlink video test signals see section 2 3 4 1for a...

Page 76: ...t Points see section 2 3 4 1for assignment to internal signals LVTTL 50 BNC Female EXT 1 to EXT 6 Not supplied Not supplied Reserved N A AZ EL Sub D 25 AZ Not supplied Not supplied Azimuth Error Anten...

Page 77: ...male UL NOM IF2 IFM 2 Nominal IF output port 50 90 MHz 3 dB bandwidth 0 to 80 dBm 50 BNC Female UL ALT IF2 IFM 2 Alternate IF output port DC 90 MHz 3 dB bandwidth 20 dBm 50 DOWNLINK BNC Female DL NOM...

Page 78: ...5 17 Date Dec 03 2021Sept 30 2021 Safran Data Systems This document is the property of Safran Data Systems It cannot be duplicated or distributed without expressed written consent Page 7 Connector Typ...

Page 79: ...gnificant from 20 dBm to 60 dBm Coherent IF level significant from 0 dBm to 100 dBm 0 to 10 V 10 dB V 2 V 20 dBm 10 V 100 dBm Requires high impedance input SMA Female AGC OUT 2 AGC voltage Output 2 No...

Page 80: ...ta Systems This document is the property of Safran Data Systems It cannot be duplicated or distributed without expressed written consent Page 9 Connector Type Connector Panel Label Signal Electrical c...

Page 81: ...lists and identifies the various connections to the computer ports and the I O connectors of the Cortex CRT Quantum dedicated hardware Figure 12 IS00427 Rear panel Connectors with BNC integration Num...

Page 82: ...als to the user system is normally performed Directly at the rear panel for the 2 RF outputs and 3 RF inputs of the EFC board with SMA connectors Through the integrated interconnection panel on the ch...

Page 83: ...nate 3 2 Mechanical Ground 21 1 PPS In 3 Mouse PS2 normally unused 22 IRIG In 4 Keyboard PS2 normally unused 23 Reserved 5 IPMI LAN 24 Reference Frequency 2 6 USB 25 AGC out 1 7 COM 1 normally unused...

Page 84: ...ction of the various signals to the user system is normally performed through the Interconnection Panel described in 2 3 1 2 The computer connections LAN VGA RS232 are directly available on the Indust...

Page 85: ...lternate 2 2 Mechanical Ground 18 Downlink IF Alternate 1 3 Mouse PS2 normally unused 19 Downlink IF Alternate 2 4 Keyboard PS2 normally unused 20 Downlink IF Alternate 3 5 IPMI LAN 21 Reserved 6 USB...

Page 86: ...and 3 RF inputs of the EFC board with SMA connectors Through the Interconnection Panel described in 2 3 1 2 for the other signals Uplink IF Alternates Downlink IF Alternates AGC out Video out referen...

Page 87: ...3 2 Mechanical Ground 21 Reserved 3 Mouse PS2 normally unused 22 Reserved 4 Keyboard PS2 normally unused 23 Reserved 5 IPMI LAN 24 Reference Frequency 2 6 USB 25 AGC out 1 7 COM 1 normally unused 26 A...

Page 88: ...connectors of the Cortex CRT Quantum dedicated hardware Figure 16 Configuration S100684 Rear panel Connectors Table 10 Configuration S100684 Rear panel Connectors Connecto r Usage Connector Usage 1 U...

Page 89: ...he Cortex CRT Quantum dedicated hardware Figure 17 Configuration S100685 Rear panel Connectors Table 11 Configuration S100685 Rear panel Connectors Connecto r Usage Connect or Usage 1 Upper power supp...

Page 90: ...tex CRT Quantum dedicated hardware Figure 18 Configuration S100686 Rear panel Connectors Table 12 Configuration S100686 Rear panel Connectors Connecto r Usage Connector Usage 1 Upper power supply unlo...

Page 91: ...CRT Quantum dedicated hardware Figure 19 Configuration S100687 Rear panel Connectors Table 13 Configuration S100687 Rear panel Connectors Connecto r Usage Connect or Usage 1 Upper power supply unlock...

Page 92: ...he software licenses some of these test points may be disabled For instance a standard CORTEX machine for station keeping operations low bandwidth uplink and downlink the following Video test points o...

Page 93: ...M encoding HBW Video CLK NRZL PCM Not available RAU RAU analog output range tones or modulated S C RAU output tone rank tone ID FIRST 2 TONE 3 TONE 3 TONE 3 TMS TMS analog output PCM BPSK TMS output d...

Page 94: ...1 1 0 0 J27 0 0 1 1 0 0 1 1 0 1 J28 0 1 0 1 0 1 0 1 1 0 INMARSAT and LMCO tone standards Major Tone Minor 1 Minor 2 Minor 3 J26 0 0 0 1 J27 0 1 1 0 J28 1 0 1 0 ESA code standard Start of sequence end...

Page 95: ...RZL to the TMS or TCU for QPSK and OQPSK modulation only Downlink Q channel input to the associated TMU decoding or F S QPSK or OQPSK demodulation only LVTTL TTL high imp SET 1 Clk in J9 SET 2 Clk in...

Page 96: ...nal name In Out Signal description Electrical 1 I_IN_POS IN I Data Input positive RS 422 2 Q_IN_POS IN Q Data Input positive RS 422 3 CLK_IN_POS IN Clock Input positive RS 422 4 GND Ground Ground 5 GN...

Page 97: ...stributed without expressed written consent Page 17 The following figure gives the interface with the Cortex RS 422 transceiver MAX3469 Only the I_IN and I_OUT signals are represented see Table 14 Int...

Page 98: ...USER S MANUAL Ref DTU 100042 Is Rev 5 17 Date Dec 03 2021Sept 30 2021 Safran Data Systems This document is the property of Safran Data Systems It cannot be duplicated or distributed without expressed...

Page 99: ...scription IFR IF Receiver performs FM PM BPSK QPSK OQPSK SOQPSK GMSK AQPSK demodulation at IF TMU Telemetry Unit performs demodulation at baseband bit synchronization data decoding and frame synchroni...

Page 100: ...o types of monitoring tables can be transmitted Fixed size monitoring tables as per the standard monitoring protocol containing all parameters status and alarms including the ones that haven t changed...

Page 101: ...ging messages configuration changes and telecommanding messages can be stored in a FIFO structured file circular buffer on the hard disk TCP IP logging messages are directly stored to the disk message...

Page 102: ...BPSK PM PCM BPSK FM BR 25 kbps PCM PM PCM FM Low Bandwidth Extended LBW extended Video mode SCF 512 kHz BR 64 kbps PCM BPSK PM PCM BPSK FM BR 64 kbps PCM PM PCM FM High Bandwidth with sub carrier demo...

Page 103: ...carrier FULL BANDWIDTH Modulation Viterbi Decoding Differenti al Decoding Programmed Bit Rate bits s Bit Synchronizer Output bits s or symbols s Frame Synchronizer Input bits s BPSK PCM PM PCM FM Disa...

Page 104: ...20 Mbps 10 Mbps Disabled BP L M S DBP M S DM M S 10 Mbps 10 Mbps 10 Mbps Enabled BP L M S DBP M S 10 Mbps 10 Mbps 5 Mbps QPSK Disabled NRZ L M S 10 Mbps 5 Msps 10 Mbps Enabled NRZ L M S 20 Mbps 10 Ms...

Page 105: ...DM M S 1 Mbps 1 Mbps 1 Mbps Enabled BP L M S DBP M S 1 Mbps 1 Mbps 500 kbps QPSK Disabled NRZ L M S 1 Mbps 500 ksps 1 Mbps Enabled NRZ L M S 1 Mbps 500 ksps 500 kbps Disabled DQPSK 1 Mbps 500 ksps 1 M...

Page 106: ...cked This locking process is robust since the performances do not depend on the bit rates ratio and the data themselves The drawback is that the acquisition and tracking threshold is based on the high...

Page 107: ...d Gaussian filter that further reduces side lobe levels and spectral bandwidth The product of the Gaussian filter bandwidth and the coded symbol period at the input to the modulator referred to as the...

Page 108: ...is a constant envelope Continuous Phase Modulation CPM It is derived from OQPSK with the addition of a baseband filter that further reduces side lobe levels and spectral bandwidth Filter shapes are d...

Page 109: ...s Rev 5 17 Date Dec 03 2021Sept 30 2021 Safran Data Systems This document is the property of Safran Data Systems It cannot be duplicated or distributed without expressed written consent Page 29 3 3 1...

Page 110: ...ample of an input IF carrier which is FM modulated by a pure sub carrier this signal being in the Pre Detection filter bandwidth to polar converter is Where is the sample time index is the number of b...

Page 111: ...n to polar sampling frequency Fs is decreased The sinc term filters the output with a bandwidth which is increased when the Cartesian to polar sampling frequency Fs is increased or when the discrimina...

Page 112: ...is the property of Safran Data Systems It cannot be duplicated or distributed without expressed written consent Page 32 3 3 1 3 2 PCM FM modulation PCM FM is a constant envelope continuous phase modul...

Page 113: ...sed on the frequency discriminator approch The dector decision uses only one symbol 2 The Multi sympol FM demodulator available under licence that takes benefit of the information contained within the...

Page 114: ...off the demodulator is able to withstand a non accurate modulation index However with MS FM demodulation inaccuracies of modulation index are a critical point for the receiver performances The MS FM r...

Page 115: ...o 0 7 The modulation index of the transmitted PCM FM signal has been changed around the 0 7 nominal value For each transmitter index value the 0 ratio has been increased till the measured BER is 10 5...

Page 116: ...on like phase noise and mod index variation by limiting the propagation of the memorized information in the trellis and making more local decisions Nominal mode In this mode the MS FM demodulator uses...

Page 117: ...detection bandwidth 3 3 1 5 Low Bandwidth TMU For low bandwidth applications PCM BPSK PM BR 25 kbps and SCF 128 kHz the Bit Synchronizer can operate in two modes Normal mode or Extended mode In the N...

Page 118: ...algorithm is robust to noise and Doppler rate Very low bit rates require higher FFT resolution hence acquisition is slower and proportional to the acquisition range and loop bandwidth 3 3 2 1 3 Scanni...

Page 119: ...is Identification of the spectrum lines rising out of the noise and selection of the center one Used for acquiring a remnant IF carrier PM modulated by a sub carrier or a PCM signal with any modulatin...

Page 120: ...duplicated or distributed without expressed written consent Page 40 3 3 2 1 6 Barycentre Frequency Significant Spectrum Spectrum barycentre Center frequency Noise Margin Threshold Max Value Margin Thr...

Page 121: ...it of the acquisition range example 130 kHz Sweeping starts when the Operator click on icon in the top level window Refer to the MCS User s Manual and the TCP IP Interface Specification IFR Restart Fo...

Page 122: ...bandwidth PLL bandwidth Hz Worst Case C No dB Hz Worst Case Doppler rate Hz s 1 10 3 15 10 20 1 30 25 5 100 30 50 300 35 400 1000 40 4000 3000 45 40000 3 3 2 2 1 PM and Coherent AM Demodulation Opera...

Page 123: ...12 3 2 0 03 8 1 0 0 1 7 1 2 0 3 4 3 4 1 0 5 7 3 3 8 10 Next table gives the acquisition and tracking Doppler rate threshold for the IF Receiver in direct PCM mode no sub carrier DEMODULATION WORST CA...

Page 124: ...ated or distributed without expressed written consent Page 44 3 3 2 3 1 PCM PM Demodulation Carrier Acquisition Mode Normal High Index Highest spectrum line Center spectrum line 3 3 2 3 2 BPSK QPSK OQ...

Page 125: ...pter 3 3 2 2 3 3 3 1 2nd Order PLL This is the most commonly used PLL However for demanding applications this loop has one drawback Expected C N0 is sizing the loop bandwidth Loop bandwidth is sizing...

Page 126: ...It cannot be duplicated or distributed without expressed written consent Page 46 The graph below shows the theoretical tracking capacity of the 2nd order PLL The real limit on the Cortex CRT DS is sli...

Page 127: ...le to track an infinite Doppler rate The limitation is now on the acceleration of the Doppler shift The 3 rd order loop relaxes the Doppler rate constraint phase bias is not generated any more by the...

Page 128: ...tage from raw data Thus Doppler measurement is based on exact values of phase If the sampling rate is not a multiple of 10 ms the raw accumulated phases are sampled every 10 ms To obtain the accumulat...

Page 129: ...quired sampling frequency Such an interpolation generates an error Let s call the interpolated phase the phase error T the 10 ms period and the time between 0 and T when the phase is interpolated The...

Page 130: ...owing to the accumulated phase interpolated every seconds according to the formula where is the computed Doppler is the IF Receiver centre frequency and the accumulated phase with a resolution of 2 32...

Page 131: ...period of 0 1 s and 0 293 mm s for a sampling period of 10s 3 3 4 6 Sampling Period Resolution 3 3 4 6 1 Error Due to Computing The accumulated phase and Doppler sampling is processed owing to an inte...

Page 132: ...in post detection or pre detection mode This processing is available when the IF Receivers are in Video mode PM or FM demodulations or PCM mode direct PCM demodulation Two operating modes are supporte...

Page 133: ...of the two channels Diversity combining is available for these types of modulation schemes Video mode PM demodulation PCM mode PCM PM PCM BPSK PCM QPSK or PCM OQPSK not yet supported in PCM AQPSK mode...

Page 134: ...he demodulator non coherent measures their estimations are less precise but they can be done rapidly Then the combiner is able to react swiftly to signal fades Sub Carrier Demodulators Frame Synchroni...

Page 135: ...d to a high bandwidth direct PCM telemetry unit Note a status in the DCU monitoring table indicates which IF Receiver is Channel A and which one is Channel B Next figure illustrates the signal paths t...

Page 136: ...highest bit rate and TMU B with the lowest bit rate The lowest bit rate has to be a sub multiple of the highest bit rate Hence the IFRs will remain locked during bit rate switch the frame synchronizer...

Page 137: ...than the IFR loop bandwidth divided by 10 In PCM mode The demodulation mode is not the same for Channel A and Channel B or The carrier acquisition ranges of the two IF Receivers do not overlap or The...

Page 138: ...r B is given by Amplitute_Channel Amplitute_Channel_A Amplitute_Channel_B 100 In the case of combining on direct PCM IF Receivers the Eb N0 status are used to compute the combining coefficients instea...

Page 139: ...icated in the following figure Each elementary combiner bloc is similar to the pre detection combiner bloc described in the previous paragraphs This combiner allows combining 4 channels carrying the s...

Page 140: ...input channels Weighting them according to their respective levels The output of the elementary combiner bloc is settable to Channel A Channel B or Combined The processing involved here are basically...

Page 141: ...ing DQPSK or DOQPSK DSOQPSK Differential decoding NRZ M or NRZ S R NRZ decoding Frame synchronization Descrambling Reed Solomon decoding or Turbo decoding Data time tagging storage and transmission to...

Page 142: ...the CCSDS recommendation CCSDS 131 0 B 3 The following coding characteristics should be used Convolutional code with maximum likelihood Viterbi decoding Code rate 1 2 1 3 2 3 3 4 5 6 7 8 bit per symbo...

Page 143: ...tributed without expressed written consent Page 63 3 3 6 3 4D 8PSK TCM Decoding Tcm decoding is compliant with CCSDS Green Book CCSDS 413 0 G 2 Code rate 2 00 3 2 25 3 2 50 3 2 75 3 Bit rate 100kbps 2...

Page 144: ...LD MPSK TCM with L 1 and M 8 The trellis is constructed to maximize the minimum Euclidian distance between different paths originating and merging to the same state The construction of the optimum tre...

Page 145: ...Spectral efficiencies of 2 2 25 2 5 and 2 75 bits channel symbol are achieved with four possible architectures of the constellation mapper The output switch addresses successively one of the four sym...

Page 146: ...6 3 3 Differential Coder The differential coder depicted in Figure 20 is used to eliminate phase ambiguity on carrier synchronization for each modulation efficiency Table 10 gives the bit reference a...

Page 147: ...phase transparency The systematic coder is implemented with the following characteristics number of states 64 states constraint length K 7 The convolutional encoder is specified by the following poly...

Page 148: ...d logical mapping described in the equations below The correspondence between the signals Z i at the input of the modular and the 8PSK phase states of the constellations follows a natural mapping i e...

Page 149: ...nd higher symbol error correction capability within a R S codeword coded to decoded information ratio 223 255 if E 16 and ratio 239 255 if E 8 Symbol interleave factor 1 to 8 auto adjusted frame lengt...

Page 150: ...and with 4 bits input quantized soft values The following coding characteristics should be used Payload block size bits 1784 3568 7136 8920 Code rate 1 2 Up to 16 iterations depending on the bit rate...

Page 151: ...4 bits 1e 006 1e 005 0 0001 0 001 0 01 0 1 1 0 5 0 0 5 1 1 5 2 PER 8920 bits 5 bits 4 bits Eb No Eb No Eb No Eb No 1e 006 1e 005 0 0001 0 001 0 01 0 1 1 1e 006 1e 005 0 0001 0 001 0 01 0 1 1 0 5 0 0 5...

Page 152: ...he following formulas allow to calculate the theoretical Eb No value from the carrier to noise ratio at IF Receiver input for different telemetry modulation schemes refer to Bessel tables J0 carrier J...

Page 153: ...lemetry only 0 0 10 log 3 3 6 7 LDPC Decoding Licensing Implementers should be aware that the codes optimized for deep space applications are covered by US Patent 7 343 539 Potential user agencies sho...

Page 154: ...parameter If LDPC decoding is turned on i e LDPC RATE 1 2 2 3 4 5 7 8 this parameter is read as a number of bits If the Payload block size does not correspond to CCSDS standard it will cause an alarm...

Page 155: ...nnot be duplicated or distributed without expressed written consent Page 75 Figure 36 CCSDS BER performance for all rates 0 01E 09 0 10E 09 1 00E 09 0 01E 06 0 10E 06 1 00E 06 0 01E 03 0 10E 03 1 00E...

Page 156: ...decoder Option BPSK sub carrier demodulator Bit Synchronizer PM FM demodulator IF inputs Aux inputs Video Figure 37 TM Chain I O Ports LBW Phase ambiguity solving is by the Frame Synchronizer or by th...

Page 157: ...Viterbi decoder Differential decoder Frame Synchronizer Differential encoder Invert swap I out Option Option PM FM demodulator BPSK S C PCM PM PCM FM demodulator Bit synchronizer IF inputs Aux inputs...

Page 158: ...CM code is NRZ M or NRZ S Test points and external input to the Frame Synchronizer or Viterbi Decoder are available if one of the downlink data I Os Test Sets is enabled See section 2 3 4 2 Annex 5 an...

Page 159: ...uplicated or distributed without expressed written consent Page 79 3 3 7 3 High Bandwidth Direct PCM no Viterbi Decoding a Nominal case TMU table offset 26 0 GUI Frame Sync Input Internal Differential...

Page 160: ...ot be duplicated or distributed without expressed written consent Page 80 b External Input to Frame Synchronizer TMU table offset 26 1 GUI Frame Sync Input Ext F S interleaving Frame Synchronizer PCM...

Page 161: ...ux inputs BP DM M decoder Option Q in I in Option I Figure 39 M Chain I O Ports HBW direct PCM Data routing for BPSK and PCM PM demodulation is on I channel Phase and channel ambiguity solving is by t...

Page 162: ...MU table offset 26 0 GUI Frame Sync Input Internal PCM PM BPSK QPSK OQPSK demodulator B S IF inputs Aux inputs BP DM M decoder Viterbi decoder Differential decoder Frame Synchronizer Differential enco...

Page 163: ...in I in Option I rail Figure 40 TM Chain I O Ports HBW direct PCM with Single Viterbi Data routing for BPSK and PCM PM demodulation is on I channel Phase ambiguity solving is by the differential decod...

Page 164: ...t expressed written consent Page 84 3 3 7 5 High Bandwidth Direct PCM Dual Dcoding a Nominal case TMU table offset 26 0 GUI Frame Sync Input Internal differential decoder differential decoder interlea...

Page 165: ...hout expressed written consent Page 85 b External Input to Frame Synchronizer TMU table offset 26 1 GUI Frame Sync Input Ext F S Q in I in interleaving Frame Synchronizer Viterbi decoder differential...

Page 166: ...in PCM PM BPSK QPSK OQPSK demodulator B S Option Option Option I rail Figure 41 TM Chain I O Ports HBW direct PCM with dual Viterbi Channel and phase ambiguities are solved by the I Q interleave funct...

Page 167: ...annot be duplicated or distributed without expressed written consent Page 87 3 3 7 6 High Bandwidth Direct PCM DQPSK or DOQPSK a Nominal case TMU table offset 26 0 GUI Frame Sync Input Internal interl...

Page 168: ...It cannot be duplicated or distributed without expressed written consent Page 88 b External Input to Frame Synchronizer TMU table offset 26 1 GUI Frame Sync Input Ext F S Q in I in interleaving Frame...

Page 169: ...Option PCM PM BPSK QPSK OQPSK demodulator B S IF inputs Aux inputs DQPSK DOQPSK decoding Option Figure 42 TM Chain I O Ports HBW direct PCM Differential Coding Channel and phase ambiguities are solve...

Page 170: ...without expressed written consent Page 90 3 3 7 7 High Bandwidth PCM Dual Differential decoding a Nominal case TMU table offset 26 0 GUI Frame Sync Input Internal interleaving Frame Synchronizer inter...

Page 171: ...ibuted without expressed written consent Page 91 b External Input to Frame Synchronizer TMU table offset 26 1 GUI Frame Sync Input Ext F S Q in I in interleaving Frame Synchronizer Viterbi decoder Vit...

Page 172: ...BPSK QPSK OQPSK demodulator B S Option Option Option I rail DQPSK DOQPSK decoding Figure 43 TM Chain I O Ports HBW direct PCM with dual Viterbi Differential Decoding Channel and phase ambiguities are...

Page 173: ...Differential decoder Frame Synchronizer Differential encoder I out AQPSK demodulator B S IF inputs Aux inputs Viterbi decoder Option I Q Differential decoder Viterbi decoder I Differential encoder I...

Page 174: ...erbi decoder I Differential encoder I out Option Frame Synchronizer Option Option invert swap invert swap I in I in Figure 44 TM Chain I O Ports HBW direct PCM AQPSK Decoding Phase ambiguity is solved...

Page 175: ...failure CHECK phase C Before moving onto the LOCK mode the frame synchronizer will check i consecutive occurrences of the synchronization word to within n errors The contents of the telemetry block b...

Page 176: ...ved NRZL data stream is not successful a second comparison is made after inversion of the telemetry data If this second comparison is successful to within n bits the signal inversion is confirmed and...

Page 177: ...se lock mitigation an anti false lock functionality has been added SPS e5r23 and higher See STI 100013_TTC Telemetry Unit table offset 18 Two different AFL modes are available Standard AFL It consists...

Page 178: ...ted frames are time tagged and transmitted to the Telemetry Clients The telemetry message size is determined by the minor frame size IRIG format or the transfer frame size CCSDS format When the Frame...

Page 179: ...hannels merged In the single frame transmission mode it is not required to close the connection between two consecutive TM packets It is the client s responsibility to ensure that the data acquisition...

Page 180: ...rames will be transmitted at the rate of one frame every 1 1 second to the Telemetry Clients Dummy frames or blocks indicate that the telemetry chain is unlocked this information is also available to...

Page 181: ...TCP IP postamble Total 324 bytes Minor frame duration 8 x 256 2048 1 second Required storage size 24 x 3600 86 400 frames 28 Mbytes Telemetry storage can be activated inhibited by a Control Client Onc...

Page 182: ...er number n in the FTMUn file name Sequence number it is incremented when a new recording session occurs for the TMU All the files used for a session have the same sequence number Time tag of the firs...

Page 183: ...e response of the equivalent channel should be equal to 0 for each multiple of 1 R This property is verified for a chain made of a RRC emitter filter and a RRC receiver filter as RRC are well known Ny...

Page 184: ...vering a signal affected by amplitude and or phase distortions It is available on direct PCM demodulation chains and it is license dependent The effect of the DEAF can be seen in the figure below A te...

Page 185: ...zer is able to compensate the channel distortion and the resulting Eb N0 is higher 18 dB in this case which represents a gain of 14 dB That can be seen on the constellation plot where the ISI is minim...

Page 186: ...solution achieved the algorithm can be stopped The speed of the algorithm can be set to fast or slow The impulse response of the adaptive filter can be forced to be symmetric The impulse response of...

Page 187: ...d the scrambling mode This new feature is available with a license defined in TMU registry in the newest version of the software 6 17 and more 3 3 16 2 CCSDS Descrambling Here s the example for CCSDS...

Page 188: ...in a TMU with Viterbi and custom LFSR scrambling licenses The corresponding scrambling is also implemented in the Telemetry Simulation The received bits are passed to the LFSR The LFSR generates the...

Page 189: ...is license dependent and is associated with a LBW TMU while being independent from the standard telemetry flow processing 3 3 17 1 Prerequisites The feature applies for telemetry signals with a sub c...

Page 190: ...in the telemetry frame of the first bit of the i th field The first bit that follows immediately the synchronization word has the position 0 bi size of the i th field in bits up to 32 bits Note There...

Page 191: ...r is modulated by any combination of video base band signals IFM set to PCM mode only the IFM supports PCM PM PCM FM BPSK QPSK OQPSK modulation The carrier is modulated by a single PCM data stream IFM...

Page 192: ...o input Signal bandwidth is limited to 125 250 or 500 kHz factory setting IF modulation is limited to PM and FM Sub carrier generation can be by passed on the TMS The base band video signals can be mo...

Page 193: ...s enabled or up to 40 Mbps for direct PCM modulation modulation dependent TCU or TMS monitoring data clock on output test points if one data I O test set is enabled see section 2 3 4 2 and Annex 5 Ext...

Page 194: ...f the IF carrier by a low bandwidth signal low bandwidth TCU or RAU and a high bandwidth PCM signal high bandwidth TMS IF modulation is limited to PM and FM Matched filters are not available PCM encod...

Page 195: ...ument is the property of Safran Data Systems It cannot be duplicated or distributed without expressed written consent Page 115 3 4 1 2 2 BPSK Modulation BPSK modulation IF filtering Option Noise IF ou...

Page 196: ...ulation 3 4 1 2 3 1 Without Convolutional Encoding PCM encoding is disabled In case of external PCM input I Q signals must be phase aligned even for OQPSK modulation half symbol offset on Q channel is...

Page 197: ...k monitoring PCM convolutional encoding Figure 56 High Bandwidth Uplink Scenario QPSK OQPSK with Single Convolutional Encoding 3 4 1 2 3 3 With Dual Convolutional Encoding Q or OQPSK modulation IF fil...

Page 198: ...istributed without expressed written consent Page 118 3 4 1 2 3 5 With Dual Convolutional and Differential Encoding Q or OQPSK modulation IF filtering Option Noise IF outputs Option I Q Switching Buil...

Page 199: ...factory setting PCM PCM mode TMS monitoring data clock on output test points if one data I O test set is enabled for each TMS see section 2 3 4 2 and Annex 5 External data clock input on test points i...

Page 200: ...The carrier to noise ratio in a 1 Hz bandwidth C No can be programmed between 15 and 100 dB Hz When the IF carrier is modulated at least by a video signal the noise energy remains fixed and the carri...

Page 201: ...xed polynomial which depends on the selected PRN degree This mode allows BER measurement by bit comparison between the emitted data and the ones received by the Telemetry Unit selected owing to the pa...

Page 202: ...s is in every case at the value 1 The sequence length is 2 polynomial degree 1 The BER is measured by processing with the same polynomial the data received by the Telemetry Unit selected owing to the...

Page 203: ...essing provides the capabilities corresponding to the rates 2 00 3 2 25 3 2 50 3 2 75 3 Tcm encoding recommended in CCSDS 413 0 G 2 The corresponding decoding is license dependent Tcm decoding and enc...

Page 204: ...is activated by programming the parameter Frame Encoding to Turbo code The frames are generated by using the parameters Frame Length and Turbo Code Rate of the TMU associated owing to the parameter TM...

Page 205: ...Moreover it is possible to repeat the encoding of several consecutive blocks In this case the TMS Format Length has to match the several frames which have to be encoded and so to be configured to the...

Page 206: ...duced from the TMU LDPC Code Rate Information Code Block Length bits bytes Block Length bits bytes Code rate 1 2 2 3 4 5 7 8 1024 128 2048 256 1536 192 1280 160 4096 512 8192 1024 6144 768 5120 640 16...

Page 207: ...ms This document is the property of Safran Data Systems It cannot be duplicated or distributed without expressed written consent Page 127 Uncoded information data block 1 Uncoded information data bloc...

Page 208: ...ortex CRT XL2 units The Digital IF Filter is designed for use in Video modulation scheme PM or FM modulation The Digital IF Filter is not designed for use in Direct PCM modulation PM PCM BPSK QPSK OQP...

Page 209: ...5 17 Date Dec 03 2021Sept 30 2021 Safran Data Systems This document is the property of Safran Data Systems It cannot be duplicated or distributed without expressed written consent Page 129 Figure 66 2...

Page 210: ...v 5 17 Date Dec 03 2021Sept 30 2021 Safran Data Systems This document is the property of Safran Data Systems It cannot be duplicated or distributed without expressed written consent Page 130 Figure 68...

Page 211: ...Date Dec 03 2021Sept 30 2021 Safran Data Systems This document is the property of Safran Data Systems It cannot be duplicated or distributed without expressed written consent Page 131 Figure 70 4 MHz...

Page 212: ...formed by the CORTEX CRT Quantum Wait Verify with Time out and Retry instruction Execute instruction Pause instruction Wait for Absolute Time instruction TCU Unlock instruction NOP instruction Stop Id...

Page 213: ...le length is programmable via the Control port and if parameter CMM2 CLCW is on it checks the corresponding bit s in the telemetry and then modulates the TC message Should any check fail the sequence...

Page 214: ...st TC request is re transmitted to the spacecraft If the number of retries has been reached status Locked out is posted in the TCU monitoring table and all successive satellite TC requests and TC inst...

Page 215: ...n the CORTEX CRT Quantum checks flow ID Op Code Check sum and stores in memory all following satellite TC requests or and TC instructions up to the specified number Then it acknowledges the Group inst...

Page 216: ...C5 I3 TC1 to TC5 TC requests I1 Pause instruction Duration D1 I2 Stop idling instruction I3 Execute instruction D1 TCP IP messages on TC port TC data modulation TCU idling Execute tone transmission Et...

Page 217: ...depends on the RzMode flag in the Windows registry On reception of the RZ command If flag RzMode 0 On reception of the RZ command immediately sweep back to F0 using the programmed sweep rate If flag R...

Page 218: ...now have 2 choices Triangular default value Sinusoidal You can see on the figure below the waveforms for the following STI100013 values Sweep Rate 100Hz Sweep Range 1000Hz Figure 72 Sweeping waveform...

Page 219: ...t cannot be duplicated or distributed without expressed written consent Page 139 Figure 73 Processing of the IFM Configuration Commands CONFIGURATION COMMANDS PROCESSING SWEEPING OFF COMMAND SEND COMM...

Page 220: ...ADY TRUE SWEEPING MODE AUTO or AUTO RZ SEND SWEEPING ON COMMAND TO THE IFM CMM 1 TRUE SWEEPING MODE SEND RZ COMMAND TO THE IFM SEND SWEEPING OFF COMMAND TO THE IFM 1 SWEEPING MODE SEND RZ COMMAND TO T...

Page 221: ...cated or distributed without expressed written consent Page 141 SWEEPING MODE ON THE IFM SWEEPING OFF REQUIRED STOP SWEEPING Y N START SWEEPING Add Offset to programmed frequency Always start sweeping...

Page 222: ...be demodulated Idle Pattern length 0 to keep the Bit Synchronizer locked Once the TC request has been received on the CORTEX CRT Quantum the synchronization word is automatically set to the first bits...

Page 223: ...in Monitoring the TCP IP activity on the TC port Disconnecting the TC client and dropping the IF carrier in case of abnormal activity on the TC port 3 5 7 1 Activation Inhibition of the TC Watchdog M...

Page 224: ...MON is used to remotely acquire current the COP status The COP can be monitored simultaneously by up to four TCP IP clients COP Control The Control port COP CTRL is used to remotely program the COP f...

Page 225: ...est is received the following sequence will be met Carrier OFF TC process RF Set Time Carrier ON RF Fall Time 0 02 sec TC Request S C SendSCF TC Ack Carrier OFF RF Set Time 1 sec TC Request Preamble l...

Page 226: ...Set Time Carrier ON RF Fall Time TC Request S C SendSCF S C Preamble S C CLTU Idle ON TC Ack Carrier OFF RF Set Time TC Request Preamble length If the parameter RF Fall Time is set to 0 the carrier wi...

Page 227: ...on E4R32 and higher When activated this feature allows the modulation amplitude index in PM mode deviation in FM mode to be gradually increased from zero to the requested value instead of instantly ra...

Page 228: ...A tone ESA like and USB standards PN Codes CRT eXplorer The RAU supports also measurements in Hybrid Ranging uplink is MTC2 PCM SRRC UQPSK while downlink consists in ranging tones that modulates carri...

Page 229: ...ments on the major tone is automatically changed to 100 ms instead of 250 ms Minor tones emission and ambiguity resolution is done only once upon reception of a range request on the Ranging port The f...

Page 230: ...il a programming alarm is triggered and stored in the RAU monitoring table the ranging sequence is aborted and the RAU returns on port RNG a negative secondary transaction response message with a code...

Page 231: ...rn negative secondary acknowledgement message on port RNG Return positive primary acknowledgement message on port RNG Return transaction message on port MEAS open loop H W failure bad syntax or bad co...

Page 232: ...5 tone and ESA code standards 3 6 2 2 Minor Tone Frequencies ESA like and USB Tone Standards The minor tone frequencies are programmed according to the following rule in kHz _ 500 _ _ with the follow...

Page 233: ...rate 3 6 3 1 2 Doppler Compensation ESA ESA like Hybrid Ranging and USB Standards Since satellite range measurement is not instantaneous the major challenge consists in being able to accurately track...

Page 234: ...measurements on the minor and major tones For every tone the relation between the propagation time and the phase measurement is given by _ _ 1 with _ phase shift value measured on idx_tone tone expre...

Page 235: ...100 45 100 35 98 25 95 20 93 20 97 Integration time 5s One should note that the probability of having an erroneous ambiguity solving is very high when Q 92 In fact if Q 95 it is recommended to increas...

Page 236: ...other correlator output is null As quality indication for ambiguity solving on each code we define for each with the index I the Quality Indicator QI where and are the correlation values normalized o...

Page 237: ...e offset _ Compensation for contribution to phase measurement of ground equipment that are inserted in the station calibration loop but not used during satellite range measurement example Test Loop Tr...

Page 238: ...calibration requests It allows to compensate for phase delays due to the presence of equipment that are used during station calibration but are normally not inserted in the range measurement loop typi...

Page 239: ...ing Its first order variation is called Doppler Rate radial satellite acceleration We can also define the two way phase error that corresponds to the difference between the original phase of the trans...

Page 240: ...it can exist a frequency bias of several kHz due to on board oscillators drift with respect to the expected downlink frequency Consequently contrary to the coherent mode case there isn t an exact a pr...

Page 241: ...or range tone can be deduced from the carrier Doppler shift see the previous equations for definition of the ratio between the carrier Doppler shift and the tone Doppler shift The Doppler Rate Aid pri...

Page 242: ...en using Doppler Rate Aid would induce a bias in the Major Tone frequency at the input to the PLL and therefore would induce a Ranging measurement error In order to cope with a large Doppler offset at...

Page 243: ...ng ftx_tone IF Receiver Ranging Major Tone tracking Srx t XRG_rx t Major tone synthesizer Rone t Low pass decim filter PLL filter VCO residual t Rough delay estimation N number of 2 rotations on the M...

Page 244: ...6384 ms Such an interpolation generates an error Let s call the interpolated phase the phase error T the 1 6384 ms period and the time between 0 and T when the phase is interpolated where is the recei...

Page 245: ...that the tone is transmitted the value gives the tone rank in the ranging sequence 1 tone transmitted first In Hybrid Ranging the tones are imposed by the satellite configuration and are always emitt...

Page 246: ...on index let s call it Idx offset 6 in IFM table has to be configured with The Major Total amplitude ratio for ambiguity resolution has to be configured with the value of In this case and 1 The Major...

Page 247: ...electing any of the following scenarios parameters T Ta and Ts see Figure 75 Scenario 1 select All Fixed The major tone set time depends on the selected RAU PLL bandwidth parameter PLL Bandwidth The m...

Page 248: ...imum satellite to earth distance and c is the light speed 3 x 10 8 m s Values are rounded up to the nearest whole number of resolution steps resolution step 13 1 ms Ambiguity solving distance computat...

Page 249: ...me Tagging The time tag in the ranging transaction response message corresponds to the first phase measurement performed on the first tone of the ranging sequence INMARSAT and LMCO standards the first...

Page 250: ...sation but excluding Spectrum Correction and Board Correction Not significant for the ESA code standard Correction for spectrum offsets and on board phase delay _ for each tone All phase values are ex...

Page 251: ...rmation Two way time range values in nanoseconds after ambiguity solving Synchronized see note 1 Doppler and range measurements Ambiguity solving quality factor Measurement sampling period IF level Ca...

Page 252: ...TCP IP messages are not divisible if a message cannot be entirely stored at the end of a file not enough space left it will be stored from the beginning of the file The storage function can be enabled...

Page 253: ...tone is then removed replaced by the next tone and so one When all minor tones have been transmitted the RAU then continues to function only with the major tone and measurement are performed 3 6 8 2 T...

Page 254: ...es transmission Note 2 P and Q factors for the ESA standard are hard wired not programmable 3 6 8 3 Ranging Sequence Next figure illustrates the ranging measurement sequence Major tone Major tone 2 3...

Page 255: ...calculation takes into account ambiguity solving phase drift due to spacecraft motion during major tone transmission The total duration of the ranging sequence depends on four factors the measurement...

Page 256: ...gration time multiplied by 4 allowing for higher ratio between the two last minor tones see example in section 3 6 9 4 the ratio between virtual tones 1 and 2 is 16 and a higher ambiguity distance due...

Page 257: ...Factors If the ratio between two adjacent minor tone Q factors is an integer value the one way ambiguity distance is half the wavelength of the lowest virtual minor tone Example 1 ESA like mode with...

Page 258: ...ance much beyond the wavelength of the lowest virtual minor tone In this case the one way ambiguity distance can be directly derived from the Least Common Multiple LCM of all Q factors Example all rea...

Page 259: ...ch tone Tone frequencies are fixed Ranging sequences with 2 3 or 4 identical tones are accepted 3 6 10 2 Tone Frenquencies The frequency plan consists of four tones derived by division from the 10 MHz...

Page 260: ...the first phase measurement and simultaneously acquires the current time from the Time Code Reader for further time tagging of the ranging transaction response message Next measurements on the first t...

Page 261: ...expressed written consent Page 181 If the sampling ratio is set to 4 1 measurement out of 4 transmitted to Ranging Client the sequence duration is 1st tone set time 6 seconds Measurement on 1st one 3...

Page 262: ...wing for accurate range measurement The PLL is a second order whose bandwidth 2Bn is programmable from 0 1 to 8 Hz Cortex CRT Quantum or 0 001 Hz to 8 Hz CRT eXplorer 3 6 11 2 Frequency Programming Th...

Page 263: ...the above formula The tone set time is computed according to the following formulas see next figure parameters T Ta and Ts in seconds RAU PLL bandwidth 1 to 8 Hz 2 4 RAU PLL bandwidth 1 Hz 2 2 4 2 Not...

Page 264: ...me tagging of the ranging transaction response message 7 Status Measurement Progress is equal to 100 Phase and distance measurements are returned to the Ranging Measurement Client s in a ranging trans...

Page 265: ...tal PLL the RAU produces a phase locked replica of the major tone The PN components are correlated with the demodulated code to determine the number of major tone cycles in the range The PLL is a seco...

Page 266: ...mitted ranging sequence The JPL PN code structure is the first structure used in PN codes history The T2B PN code structure is used to optimize the integration time The T4B PN code structure is used t...

Page 267: ...ms is the time between the reception of the uplink signal and the regeneration of the downlink signal by the onboard receiver 1 Note Set time values are rounded up to the nearest whole number of resol...

Page 268: ...he received ranging sequence The duration parameter Integration Time is programmable from 0 25 s to 500 s 3 Stabilization of the PLL during Ts seconds 4 First phase measurement on the tone and ambigui...

Page 269: ...d without expressed written consent Page 189 Assuming that these parameters are 500 kHz tone frequency 1 no under sampling 4 3 s integration time 10 measurements on the tone and 1 Hz loop bandwidth th...

Page 270: ...rates ranging tones synchronously the ranging tones frequencies major and minor being exact integer multiples of the Epoch rate Each minor tone and the major tone starts with zero and positive phase e...

Page 271: ...gth 256 1023 chips MINOR TONE RANK 1 FIRST REAL TONE FREQUENCY KHZ RATIO FREAL TONE FEPOCH MAJOR TONE Always 10637 2723 MINOR TONE 1 9832 2517 2 8215 2103 3 8207 2101 4 8230 2107 5 3996 1023 6 4012 10...

Page 272: ...f the major tone that is compatible with the phase measurements on minor tones 1 There is a multitude values of K added to k that leads to the same phase measurements 1 1 All the K are integer multipl...

Page 273: ...afran Data Systems This document is the property of Safran Data Systems It cannot be duplicated or distributed without expressed written consent Page 193 And finally since K0 is the lowest integer tha...

Page 274: ...There is a continuous transmission of a minor tones sequence along with the major tone 1 On reception of a ranging request from the Ranging Client the RAU computes the tone definition table only the f...

Page 275: ...on four factors the measurement sampling ratio the minor tone integration time the number of measurements on the major tone the number of minor tones the PLL bandwidth Assuming that these parameters a...

Page 276: ...is normally output on the dedicated IFM is replaced with ranging tones from an internal generator The ranging tones modulate the carrier in PM The PM signal is generated coherently and synchronously...

Page 277: ...1 11 1 1 1 0 0 1 1 1 0 0 0 1 1 1 1 1 1 1 1 12 1 1 1 1 0 0 1 1 1 0 0 0 1 1 1 1 1 1 1 13 0 1 1 1 1 0 0 1 1 1 0 0 0 1 1 1 1 1 1 14 0 0 1 1 1 1 0 0 1 1 1 0 0 0 1 1 1 1 1 15 1 0 0 1 1 1 1 0 0 1 1 1 0 0 0 1...

Page 278: ...115 1 5 1 0 5 0 0 5 1 1 5 x 10 4 Epoch position after interpolation by zero insertion Epoch position after RRC filtering SQPN Q code signal and Epoch position First chip of sequence Epoch of the sequ...

Page 279: ...antenna and from the antenna down to the Cortex IFR owing the TLT switch For this purpose a calibration ranging request must be sent to the RAU cf STI 100013 This can be done also with the MCS by cli...

Page 280: ...of spacecraft LEO GEO Use the following formulae to calculate the performances of the CORTEX CRT Quantum in the presence of noise and Doppler rate in radian 2 2 2 2 0 And in case of PN Codes in radia...

Page 281: ...es signal acquisition and tracking performances of the on board and station IF Receivers The Doppler Predictions are initialised by a request containing a time reference based on IRIG B reference a ti...

Page 282: ...1pps signal Once the execution date is reached by the IRIG B reference the hardware starts updating the NCO every 160 s 16 s 1 6 s 0 16 s until the end of compensation process The next figure illustra...

Page 283: ...at the frequency curve derived from the and entries is sampled by the CORTEX software every 13 ms see next figures Depending on the selected the uplink carrier compensation can be as accurate as to wi...

Page 284: ...of Safran Data Systems It cannot be duplicated or distributed without expressed written consent Page 204 Frequency Time F0 forward programmed frequency IRIG B Time reference Initialization request Fre...

Page 285: ...rrier and the compensated IF carrier or sub carrier Error Code Invalid instruction frequency offset result is less than 7 812 500 Hz or larger than 7 812 500 Hz Invalid date time starting time is clos...

Page 286: ...will contain the scheduled init time programmed at the Doppler Compensation initialization followed by the time frequency and extra frequency offsets contained in the internal table Error Code No Dop...

Page 287: ...the IRIG B Clock cf Figure 77 Leap year In the two cases we have a slipping of execution dates equivalent to 3600x24 seconds for leap year or the value of IRIG B compensation To avoid this situation...

Page 288: ...band for downlink 930 to 2400 MHz and uplink 950 to 2400 MHz The EFC board is able to process up to 3 inputs and up to 2 outputs The EFC board is fully integrated with the Cortex CRT with internal co...

Page 289: ...EFC is able to manage up to 3 inputs The 3 inputs can be set independently For each input the user can program The frequency of the input The RF gain control mode automatic recommended or manual The R...

Page 290: ...nput frequency of the IF Receiver with an accuracy of the Microhertz for the down conversion intermediate band to base band The IF frequency shall be adapted accordingly to the RF frequency The formul...

Page 291: ...case of L S band operation the gain is programmable from 10 to 25 dB with Model S105576 and from 15 to 30 dB with Model S108984 In case of 60 78 MHz operation Bypass mode no gain is applied Important...

Page 292: ...12 3 8 2 UpLink Channels The EFC is able to manage up to 2 outputs The 2 outputs can be set independently For each output the user can program The frequency of the output The RF level of the output A...

Page 293: ...band to intermediate band The RF converter frequency with 5MHz step for up conversion from intermediate band to L S band The IF frequency shall be adapted accordingly to the RF frequency The formulas...

Page 294: ...gain of the EFC board to minimize the level of parasites In case of bypass mode operation no gain is applied to the EFC board 3 8 3 Calibration The EFC is calibrated at factory in order to provide a...

Page 295: ...EFC board The external reference 2 is still connected to the main signal processing board of the CRT The EFC board supply a reference 10MHz to the main signal processing board of the CRT Here below a...

Page 296: ...e external reference 2 EFC board uses its internal reference This mode is strongly NOT recommended No external reference is connected to EXT 2 MSP board uses its internal reference EFC board uses its...

Page 297: ...ran Data Systems This document is the property of Safran Data Systems It cannot be duplicated or distributed without expressed written consent Page 217 3 8 5 Interconnection The diagram below illustra...

Page 298: ...ps 4 1 1 1 Starting the PC Workstation 1 Verify that the CORTEX has not been damaged during transportation If needed open the top cover and verify that the electronic sub assemblies are in good condit...

Page 299: ...Processing software is automatically started If the Demodulator board is present the following SPS icon lower right corner appears If the board is not mounted in the chassis or in the case of a major...

Page 300: ...e menu and select Exit Or click on in the upper right corner of the MCS window If any configuration parameter has been changed since the MCS Document was updated on the disk the following message is d...

Page 301: ...ex Shutdown PRIOR TO SWITCHING OFF YOUR CORTEX PRODUCT SHUT DOWN THE PC COMPATIBLE WORKSTATION CLICK ON Start Shutdown FAILURE TO OBSERVE THIS PROCEDURE CAN AFFECT DATA ON THE DISK AND THE SYSTEM ITSE...

Page 302: ...en An integrated LED backlit 6 button translucent silicon keypad Figure 94 Front Panel display At start up the screen displays the Main window where the first line presents the machine name and the se...

Page 303: ...and Subnet Mask Contrast and Brightness of the screen Shutdown Restart system This front panel display allows the monitoring of System Free spaces on drives Fans speed CPU usage Modem FPGA and board...

Page 304: ...button Select option Shutdown or Restart with Left or Right buttons and then press the Enter button Press a second time the Enter button to confirm action or press the Return button to cancel action 4...

Page 305: ...modification Use Left and Right buttons to select the character to be changed and use the Up or Down buttons to change the value In order to apply the configuration leave the Network menu by pressing...

Page 306: ...k Locked Flywheel The first line allows to monitor the TTC Telemetry Unit A TableNumber 0x1060 BitRate OffsetValue 1 as a float value The second line allows to monitor the TTC Telemetry Simulator 1 Ta...

Page 307: ...It cannot be duplicated or distributed without expressed written consent Page 227 4 1 6 Third Party Software WARNING DO NOT INSTALL THIRD PARTY SOFTWARE SUCH AS ANTI VIRUS FIREWALL NTP TIME SYNCHRONIZ...

Page 308: ...c configurations can be created by the operator CTX Documents are binary files they cannot be displayed on the screen or printed out 4 2 2 SPS Start Sequence The default CTX Document loaded by the SPS...

Page 309: ...component tables The CTX Document Name Table is automatically saved to the disk D ZDS Data CRT Menu x CTXDocument NameTable TXT whenever the name of a CTX Document is changed or at application ending...

Page 310: ...cument Name Table Disk Accept Store CTX Document N with Label Set CTX Document ID status to N Set Update CTX Document status to 0 Update label to CTX Document N in CTX Document Name Table Accept Confi...

Page 311: ...hereafter or remotely Remote Access Control by sending control commands to a specific RAC data server on the CORTEX machine RAC port 3003 Control commands are described in the Ethernet ICD STI 100013...

Page 312: ...ndow appears on the screen The windows show the last loaded menu active menu when the CORTEX software was restarted Ignore or close this window if you agree with the proposed menu To select another me...

Page 313: ...t expressed written consent Page 233 4 2 4 3 MCS Graphical User Interface From the SAFRAN DATA SYSTEMS MCS the operator can access the RAC server by clicking successively in the upper toolbar on Windo...

Page 314: ...the PROMed software SAFRAN DATA SYSTEMS electronic cards refer to the Acceptance Test Report see also the marking on the PROM chips To know the Signal Processing Software SPS version and what version...

Page 315: ...n Signal Processing board downloaded FPGA software MSP Master FPGA Type Issue Revision MSP Slave FPGA Issue Revision Optional Downlink Analog board downloaded FPGA software Issue and Revision Optional...

Page 316: ...CORTEX software configuration SPS MCS etc D ZDS Data CRT CRT Signal Processing Software other files CrtConfig_i CTX D ZDS Data CRT Filter IF filters coefficients files D ZDS Data CRT CTXDocument i CTX...

Page 317: ...s Registry Please note that the entries in the Registry depend on the applications and services installed on the CORTEX WARNING THE KEYS IN SIGNAL PROCESSING PATH CANNOT BE MODIFIED 4 2 7 1 General Pr...

Page 318: ...0 MHz bandwidth non coherent mode 1 AGC voltage corresponding to the IF carrier level coherent mode Bits 4 7 AGC test point 1 Not significant if bit 0 0 0 IF carrier level measured by IF Receiver 1 1...

Page 319: ...lMin Default setting at delivery 0x64 for 100dBm To change the AGC Voltage output at IFlevel dBm CAGLevelMax value in registry Registry path HKEY_LOCAL_MACHINE SOFTWARE In snec CortexCRT SetDefault Pr...

Page 320: ...lynomial value 4 2 7 2 4 IF Receiver Locking Threshold To change the IFR locking threshold Registry path HKEY_LOCAL_MACHINE SOFTWARE In snec CortexCRT SetDefault Preferences Ifrx x 1 to 5 Keyword IFTh...

Page 321: ...BufferNbr Default setting at delivery 256 frames blocks Enter a number between 4 and 1024 in decimal or between 4 and 400 in hexadecimal The size is expressed in number of frames or blocks 4 2 7 3 2 T...

Page 322: ...OCAL_MACHINE SOFTWARE In snec CortexCRT SetDefault Preferences Tmux x TM chain number Keyword RsCode Default setting at delivery 0 transmit the R S codeblock SW Set bit 0 to 0 for transmitting the R S...

Page 323: ...ivery 0 G1 before G2 or G1 on I G2 on Q Set the keyword to 0 G1 before G2 or 1 swap G1 and G2 4 2 7 3 8 Turbo Decoding Frame Synchronisation Word To modify the default synchronization words specified...

Page 324: ...c CortexCRT SetDefault Preferences Ifmx x A or B Keyword DQPSKcode Default setting at delivery 0xA3C5CA53 The 2 MSB byte are used to I polynomial value and 2 LSB byte are used to Q polynomial value Po...

Page 325: ...or 1 second pre transmission enter 1000 if the TC bit rate is 1000 bps 4 2 7 5 2 CMM Data Format To modify the CMM data format for TC TM loop verification CMM1 2 flags mask and expected value Registry...

Page 326: ...egistry path HKEY_LOCAL_MACHINE SOFTWARE In snec CortexCRT SetDefault Preferences Tcu Keyword ValPreax x 1 to 255 Default setting at delivery 0 Configure the value of the extended Preamble pattern up...

Page 327: ...o disable the storage Enter 1 to enable the storage To change the file name and access path Registry path HKEY_LOCAL_MACHINE SOFTWARE In snec CortexCRT SetDefault Preferences Rau Keyword FileDir Defau...

Page 328: ...Registry path HKEY_LOCAL_MACHINE SOFTWARE IN SNEC Cortex Station SetDefault Log Keyword Storage Default setting at delivery 0 Enter 0 to disable the storage Enter 1 to enable the storage and automatic...

Page 329: ...Snec CortexCRT SetDefault Preferences Irig Keyword Enable Default setting at delivery 0 inactive Enter 0 inactive or 1 active To enable disable the IRIG update of the PC clock Registry path HKEY_LOCA...

Page 330: ...n Keyword UseNTP Default setting at delivery 0 Enter value between 0 Code 0 and 5 Code 5 4 2 7 8 Telemetry Simulation 4 2 7 8 1 Access to Simulated TM Files To modify the name and access path of the s...

Page 331: ...0 for Data Out Updated on Falling edge of Clk Out Data In sampled on Rising edge of Clk In 1 for Data Out Updated on Rising edge of Clk Out Data In sampled on Falling edge of Clk In Byte 1 bit 2 0 for...

Page 332: ...ged on test points 1 for enabling the automatic management of the I Q ambiguity in QPSK modes Byte 1 bit 3 0 for LVTTL 1 for RS422 4 2 7 9 4 Video 1 2 Output Level Setting To adjust the output level o...

Page 333: ...at delivery 3075 Enter 0 to disable the UDP service To change the Multicast IP Address Registry path HKEY_LOCAL_MACHINE SOFTWARE In snec CortexCRT SetDefault Preferences UdpTm Keyword MultiAddr Defaul...

Page 334: ...USER S MANUAL Ref DTU 100042 Is Rev 5 17 Date Dec 03 2021Sept 30 2021 Safran Data Systems This document is the property of Safran Data Systems It cannot be duplicated or distributed without expressed...

Page 335: ...air exhaust The system is not designed for permanent operation without ventilation 5 1 3 2 Handling Precautions WARNING SOME OF THE HARDWARE COMPONENTS USE CMOS TECHNOLOGY AND CAN BE DAMAGED BY ELECTR...

Page 336: ...nt Page 256 5 1 3 3 Wait after power off It is recommended to wait for at least one minute to re power on the chassis after power off 5 1 3 4 Cpu Load Considerations SAFRAN DATA SYSTEMS DOES NOT WARRA...

Page 337: ...regular operations D5 Green LED Illuminates to indicate that the local FPGA has been correctly downloaded by the SPS application DONE signal shall be illuminated in regular operations At power on unit...

Page 338: ...r operations D2 Yellow LED Microblaze load indicator Partially lit Not significant D3 Green LED IT indicator Partially lit Not significant D4 Blue LED Illuminates to indicate that the PCIe interface F...

Page 339: ...oard It covers all capabilities of Analog uplink board Analog downlink board and Video board One LED is located at the front panel of the board See Annex 2 D1 Green LED Turns to green and flashes at 1...

Page 340: ...y that there is no alarm red line System Fan 2 verify that there is no alarm red line These alarms are reported to the remote monitoring clients via the Global CORTEX Monitoring table Annex 1 STI 1000...

Page 341: ...s power supply module and on CPU processors Return the chassis to SAFRAN DATA SYSTEMS or its maintenance representative if the problem cannot be fixed on site 5 2 3 PC Workstation Maintenance Refer to...

Page 342: ...S MANUAL Ref DTU 100042 Is Rev 5 17 Date Dec 03 2021Sept 30 2021 Safran Data Systems This document is the property of Safran Data Systems It cannot be duplicated or distributed without expressed writ...

Page 343: ...MANUAL Ref DTU 100042 Is Rev 5 17 Date Dec 03 2021Sept 30 2021 Safran Data Systems This document is the property of Safran Data Systems It cannot be duplicated or distributed without expressed writte...

Page 344: ...USER S MANUAL Ref DTU 100042 Is Rev 5 17 Date Dec 03 2021Sept 30 2021 Safran Data Systems This document is the property of Safran Data Systems It cannot be duplicated or distributed without expressed...

Page 345: ...S MANUAL Ref DTU 100042 Is Rev 5 17 Date Dec 03 2021Sept 30 2021 Safran Data Systems This document is the property of Safran Data Systems It cannot be duplicated or distributed without expressed writ...

Page 346: ...ER S MANUAL Ref DTU 100042 Is Rev 5 17 Date Dec 03 2021Sept 30 2021 Safran Data Systems This document is the property of Safran Data Systems It cannot be duplicated or distributed without expressed wr...

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