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Radio Telemetry Receiver

User's Manual

Ref.

D104004

Is.Rev

Previous Ref.:

DTU000567

Date:

21/06/2021

– IMP000074 e14r1

This document is the property of

Safran Data Systems

It cannot be duplicated or distributed without expressed written consent.

Page 75

6.10.3 Turbo decoding

The Turbo decoder is following [AD6] recommendation:

Features supported:



ASM synchronization



Data randomization removal



Payload size : 1784, 3568, 7136, 8920



Code rate = 1/2. (1/3, 1/4, 1/6 are not supported)

For more details, refer to [AD6].

6.10.4 Low Density Parity Check

The LDPC decoder is following [AD1] recommendation:

Features supported:



ASM synchronization



Data randomization removal



Block size : 1024, 4096



Code rate = 1/2, 2/3, 4/5

6.10.5 Bitrate and Overhead

In the E2R7 version and after, the bit rate configured in the demodulator corresponds to the useful bitrate.

The software automatically adjusts internal settings to match the transmitted bit rate if a FEC is activated.

Code

Block

Size

(bits)

Interleave

factor

Code ratio

Expansion

Factor

Useful Bit

rate (Mbps)

Transmitted

Bit rate

(Mbps)

Viterbi

1/2

1.000

2.000

Reed Solomon

2040

259/223

1.000

1.161

Reed Solomon

2040

514/446

1.000

1.152

Reed Solomon

2040

769/669

1.000

1.149

Reed Solomon

2040

1024/892

1.000

1.148

Reed Solomon

2040

1279/1115

1.000

1.147

Turbo Code

1784

1/2

3640/1784

1.000

2.040

Turbo Code

3568

1/2

7208/3568

1.000

2.020

Turbo Code

7136

1/2

14344/7136

1.000

2.010

Turbo Code

8920

1/2

17912/8920

1.000

2.008

LDPC

1024

1/2

33/16

1.000

2.0625

LDPC

1024

2/3

25/16

1.000

1.5625

LDPC

1024

4/5

21/16

1.000

1.3125

LDPC

4096

1/2

33/16

1.000

2.0625

LDPC

4096

2/3

25/16

1.000

1.5625

LDPC

4096

4/5

21/16

1.000

1.3125

Содержание CORTEX RTR NeXt Series

Страница 1: ...07 2021 Date Signature 13 07 2021 Total number of page s 97 REVISIONS Is Rev Date Description Page s or chapter s changed Writer 05 18 06 20 Change of reference to comply with PLM Documentation update...

Страница 2: ...on Chapter 10 configuration added 2 3 13 Annex A CRL TLB GLR 2 2 No version issue FOR RTR version E2R2 2 3 03 03 17 Updated with new bitrates configuration in RTR E2R3 version minor changes 1 1 1 1 3...

Страница 3: ...d without expressed written consent Page 3 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 Mega G...

Страница 4: ...BP L M S BiPhase Level Mark Space BPSK Binary Phase Shift Keying BS Bit Synchronizer BTs Bandwidth Filter per Symbol Period BW Bandwidth CCSDS Consultative Committee for Space Data System CH10 Chapter...

Страница 5: ...LO Local Oscillator LSB Least Significant Bit MCS Monitoring Control Software MMI Man Machine Interface MSB Most Significant Bit MS FM Multi Symbol Frequency Modulation MSP Main Signal Processing M C...

Страница 6: ...mory RF Radio Frequency RMS Root Mean Square R S Reed Solomon QPSK Quadrature Phase Shift Keying RNRZ L M S Randomized Non Return to Zero Level Mark Space RTR Radio Telemetry Receiver SNR Signal to No...

Страница 7: ...END The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance servicing instructions in the literature accompanying the...

Страница 8: ...n this handbook for future reference and adhere to all warnings in the handbook or on the apparatus Children safety This equipment is not suitable for use in places where children are likely to be pre...

Страница 9: ...y or has been dropped THE QUALIFIED MAINTENANCE PERSONNEL MUST TAKE REASONABLE PRECAUTIONS TO FACE THE OBVIOUS DANGERS Powers sources Only connect the apparatus to a power supply of the described in t...

Страница 10: ...ARATUS MUST BE USED WITH A POWER SUPPLY CABLE OF 1 MM2 SECTION MINIMUM THE POWER SUPPLY SOCKET MUST BE LOCATED AT A DISTANCE OF LESS THAN 1 5 M FROM THE EQUIPMENT AND EASILY ACCESSIBLE Lifting the uni...

Страница 11: ...e 2014 35 UE and the RoHS directive 2011 65 UE A certificate of compliance is available by contacting technical support This equipment is a Group 1 Class A product Recommendation concerning the cablin...

Страница 12: ...subassemblies regarding the WEEE directive DO NOT place the used equipment in regular waste bins All equipment marked with this logo must be recycled by an approved Waste Electrical and Electronic Eq...

Страница 13: ...afran Data Systems It cannot be duplicated or distributed without expressed written consent Page 13 INTERNATIONAL SECURITY STATEMENT France Canada L appareil doit tre connect une prise de terre Suomi...

Страница 14: ...peration of this equipment contact either your reseller or the SAFRAN DATA SYSTEMS company at the following address Web Portal Access https support safran data systems com sd Email mail to support rtr...

Страница 15: ...6 HIGH DENSITY D TYPE 44PTS CONNECTOR J49 J59 32 4 ARCHITECTURE 34 4 1 OVERVIEW 34 4 2 TUNER BOARD S BAND 35 4 3 TUNER BOARD IRIG BAND 36 4 4 ADP3 BOARD 37 4 5 MULTIBAND C EUROPE BOARD 38 4 6 CONVERT...

Страница 16: ...63 6 6 3 Internal Post D combiner 64 6 6 4 External Post D Combiner 65 6 7 ENHANCED ADAPTATIVE EQUALIZER 68 6 8 DEMODULATORS 69 6 8 1 Supported demodulation 69 6 8 2 FM discrimator gain adjustment 69...

Страница 17: ...074 e14r1 This document is the property of Safran Data Systems It cannot be duplicated or distributed without expressed written consent Page 17 7 TCP IP OR UDP IP FRAME SETUP WITH TPC FEC 93 8 IRIG B...

Страница 18: ...o use GUI for configuration and monitoring It is a compact design housed in a single 4U unit using PCI express bus architecture including screen and keyboard for direct operation Many analog features...

Страница 19: ...ritten consent Page 19 2 REFERENCES 2 1 Applicable Documents AD1 IRIG106 17 Range Commanders Council Telemetry Standards AD2 STI100013 General Cortex Ethernet Interface AD3 STI100013_RTR RTR Specific...

Страница 20: ...DTU000567 Date 21 06 2021 Safran Data Systems IMP000074 e14r1 This document is the property of Safran Data Systems It cannot be duplicated or distributed without expressed written consent Page 20 3 CH...

Страница 21: ...tems It cannot be duplicated or distributed without expressed written consent Page 21 3 1 3 With Keyboard Open The front panel includes 1 8 4 inch TFT color flat panel 2 84 key keyboard US Layout 3 Tr...

Страница 22: ...Rev 07 Previous Ref DTU000567 Date 21 06 2021 Safran Data Systems IMP000074 e14r1 This document is the property of Safran Data Systems It cannot be duplicated or distributed without expressed written...

Страница 23: ...4004 Is Rev 07 Previous Ref DTU000567 Date 21 06 2021 Safran Data Systems IMP000074 e14r1 This document is the property of Safran Data Systems It cannot be duplicated or distributed without expressed...

Страница 24: ...TR computer interfaces 3 3 1 1 AC Supply Interface 1 AC Supply Connector Type IEC Male 3 3 1 2 Computer Interfaces 2 USB 2 Connector Type USB type A 3 LAN Ethernet Connector Type RJ45 10 100 Base T St...

Страница 25: ...Female Aux 1 J08 Aux 2 J09 3 3 2 4 Analog Output Interfaces 10 USER Outputs Connector Type BNC Female User Output 1 J15 User Output 2 J16 User Output 3 J17 User Output 4 J18 11 VIDEO Outputs Connector...

Страница 26: ...ment is the property of Safran Data Systems It cannot be duplicated or distributed without expressed written consent Page 26 3 3 2 7 IRIG Time Input Interface 15 IRIG TIME Input Connector Type BNC Fem...

Страница 27: ...es 5 RF Inputs Connector Type N Female Channel 1 J01 Channel 2 J02 Channel 3 J03 Channel 4 J04 6 IF Inputs Connector Type BNC Female Channel 1 J10 Channel 2 J11 Channel 3 J25 Channel 4 J26 7 IF Output...

Страница 28: ...4 J18 User Output 5 J33 User Output 6 J34 User Output 7 J35 User Output 8 J36 11 VIDEO Outputs Connector Type BNC Female Video Output 1 J19 Video Output 2 J20 Video Output 3 J21 Video Output 4 J22 Vi...

Страница 29: ...Safran Data Systems It cannot be duplicated or distributed without expressed written consent Page 29 10 MHz Ref Output Connector Type BNC Female J06 3 3 3 7 IRIG Time Input Interface 15 IRIG TIME Inpu...

Страница 30: ...ted without expressed written consent Page 30 3 4 Standard 19 rack integration The RTR has been designed to be integrated in a standard 19 rack Because of its weight it is necessary that the RTR rests...

Страница 31: ...tems It cannot be duplicated or distributed without expressed written consent Page 31 3 5 Specific Cables Ref SM 01057058A SUB D 44 pin for Bit Synchronizer TTL Outputs 8 BNC F Outputs AGC Data Link S...

Страница 32: ...4 RS422 5 BS_P_DATA4 Output 5 TTL Output 5 RS422 6 BS_P_DATA5 Output 6 TTL Output 6 RS422 7 BS_P_DATA6 Output 7 TTL Output 7 RS422 8 BS_P_DATA7 Output 8 TTL Output 8 RS422 9 EXT_AGC_OUT_P_B2 Output 0...

Страница 33: ...nnot be duplicated or distributed without expressed written consent Page 33 PIN Ref Des Observation 34 BS_N_DATA3 Output 4 RS422 35 BS_N_DATA4 Output 5 RS422 36 BS_N_DATA5 Output 6 RS422 37 BS_N_DATA6...

Страница 34: ...everal kind of PCI Express board The Tuner Boad Tuner S allowing receive only S band signals Tuner IRIG allowing receive S L Cif P band signals The C Band board MultiBand C coupled with the Tuner S bo...

Страница 35: ...z to 36 MHz software selectable Two Variable Voltage Attenuators achieve the last part of the AGC gain 80dB Some High Linearity gain blocks are properly located along the entire receiver chain and war...

Страница 36: ...d by a bank of octave SAW filters from 500 KHz to 40 MHz software selectable Two Variable Voltage Attenuators achieve the last part of the AGC gain 80dB Some High Linearity gain blocks are properly lo...

Страница 37: ...board are 10MHz reference frequency clock with external 5 10MHz looking compatibility 4 IF AUX DC 120MHz 12 bits analog to digital conversion sampled at 250MHz IRIG B time 12bits analog to digital co...

Страница 38: ...cture An internal switch systems allows to transmit the RF signal directly to the output or to convert this signal to IF band 2180 2485MHz with a direct mixing The C Europe Band version is a down freq...

Страница 39: ...ure An internal switch systems allows to transmit the RF signal directly to the output or to convert this signal to a fixed IF frequency with a direct mixing The C Band version is a down frequency con...

Страница 40: ...tion The chapters below describe the procedure to be followed in case reinstallation installation is necessary 5 1 OS installation Windows 7 Embedded 5 1 1 Introduction A dedicated DVD ROM is delivere...

Страница 41: ...consent Page 41 Windows 7 Embedded Installation Start setup 5 1 3 Installation on blank hard drive 3 If the system contains a blank disk the system will show this screen Windows 7 Embedded Installati...

Страница 42: ...edded Installation New partitions 5 1 4 Reinstalling a system with existing Windows 7 Embedded partition 3 We recommend to delete each partition before installing Select Disk 0 Partition 1 Click on Dr...

Страница 43: ...ems It cannot be duplicated or distributed without expressed written consent Page 43 5 1 5 End of installation 6 Installation continues and reboots the system several times Windows 7 Embedded Installa...

Страница 44: ...ank disk Go directly to 5 2 3 5 2 2 Re Installation on an existing system Win10 installation does not remove data ont the D drive If a RTR software version is already installed it is recommended to un...

Страница 45: ...evious Ref DTU000567 Date 21 06 2021 Safran Data Systems IMP000074 e14r1 This document is the property of Safran Data Systems It cannot be duplicated or distributed without expressed written consent P...

Страница 46: ...Win7 and Win10 Security Updates For each Operating Systems Win7 or Win10 Safran Data Systems can propose a security update once a year Those security updates are based on Microsoft security updates an...

Страница 47: ...ware and hardware conflicts will occur EXCLUSION It is possible to use a global license CD ROM if the serial number of the concerned RTR is written on the CD ROM label 5 5 1 Installation Files Structu...

Страница 48: ...t expressed written consent Page 48 4 The following window should appear 5 Click on Next and wait Cortex RTR software Installation Starting installation 6 The following window should appear 7 Select F...

Страница 49: ...omatic upgrade Installation of E3R5 and higher version will generate an automatic FPGA upgrade if the detected version is not the proper one After installing the software version the RTR is restarted...

Страница 50: ...ZDS Data cortex TmpCrtx D ZDS Data rtrnt CTXDocument1 NameTable To save the ch10 html file First log yourself as administrator Then save the following file C Program Files ZDS rtrnt config xml ch10_c...

Страница 51: ...indows starts up push on the ON OFF button the following steps are automatically executed 1 A windows session is started Auto log as cortex user 2 A command window is launched 3 The SPS Signal Process...

Страница 52: ...ems It cannot be duplicated or distributed without expressed written consent Page 52 7 Once upgrade is done the RTR needs to be shutdown with Power Off At the next start a standard start up will occur...

Страница 53: ...s are automatically executed 1 A windows session is started Auto log as cortex user 2 A command window is launched 3 The SPS Signal Processing Software is started after 2 seconds Its icon appears in t...

Страница 54: ...a default file is loaded it automatically connects to the local SPS as Client Server applications This could take a few seconds Default file D ZDS Data CrtxMCS cortex nt mcs Toolbar Tabulation Status...

Страница 55: ...ly by using the front panel Start Button Push once on the Start Button It will take a few seconds to shut down the RTR Some events can occur You may be asked to save the current configuration You may...

Страница 56: ...ran Data Systems It cannot be duplicated or distributed without expressed written consent Page 56 6 SPECIFIC FUNCTIONS 6 1 Independent Channels capabilities In independent mode it is not possible to s...

Страница 57: ...74 e14r1 This document is the property of Safran Data Systems It cannot be duplicated or distributed without expressed written consent Page 57 6 1 2 Version E5Rx Figure 2 independent channels possibil...

Страница 58: ...als under weighting Compensate high rate fading Pre D combiner block diagram The Numerically Controlled Oscillators n 1 and n 2 put the two channels in phase The sum is weighted using the parameters 1...

Страница 59: ...ons The receiver measures the noise levels at the inputs of the receiver channel 1 and 2 The receiver uses this measure to balance RF gain impairment at the input of the Pre D combiner This action com...

Страница 60: ...s It cannot be duplicated or distributed without expressed written consent Page 60 On the main page Ticking Strength only changes the display The receiver switches from an absolute level display to a...

Страница 61: ...feature Automatic Frequency Control is available in FM and PCM FM mode only When using the AFC function the frequency offset on the received signal is compensated so that the signal is centered on th...

Страница 62: ...own on the following screenshot To have a good NF measurement it is important to be able to set the receiver at the appropriate gain when the diode is ON but generally it is not possible turn the diod...

Страница 63: ...he embedded delay on The PCM data streams The RF cables towards the TX antenna The embedded delay on The RF cables from the antenna to the receivers In case of space diversity The propagation delay be...

Страница 64: ...ed or distributed without expressed written consent Page 64 6 6 3 Internal Post D combiner Using the internal post D no external cabling is required The set up is as described hereafter Thus Output of...

Страница 65: ...Channel or One QUAD Channel can be interconnected to perform PostD combining 6 6 4 1 Interconnection On the receiver n 1 Aux 1 is connected to the Video Output of the receiver n 1 Aux 2 is connected...

Страница 66: ...Is Rev 07 Previous Ref DTU000567 Date 21 06 2021 Safran Data Systems IMP000074 e14r1 This document is the property of Safran Data Systems It cannot be duplicated or distributed without expressed writt...

Страница 67: ...is the property of Safran Data Systems It cannot be duplicated or distributed without expressed written consent Page 67 6 6 4 2 Combiner setup On both receivers the Post D combiner inputs are configu...

Страница 68: ...or multipath mitigation it is also very useful to have a very fast AGC time constant 0 1 ms The equalizer aims to statistically minimize several signal distortions Control of the signal amplitude CMA...

Страница 69: ...able demodulator 6 8 2 FM discrimator gain adjustment The FM discriminator gain depends on the IF filter bandwidth In the following example the simultaneous subcarrier mode has been selected Main chan...

Страница 70: ...after the FM discriminator gain of the demodulator n 3 has been set to X8 The signal level at the bit sync input has been increased The FM discriminator gain is also taken into account on the video ou...

Страница 71: ...sed when the transmitter uses a digital modulator With an analog transmitter it is not advised to use this mode Manual mode Selecting this mode the user defines the demodulator index This mode is only...

Страница 72: ...using the MS FM demodulator The Eb N0 has been set so that the BER 10 5 with a 0 7 pp index Looking at the blue curve the MS FM demodulator is in nominal mode the transmitted modulation index has been...

Страница 73: ...on the edge the bit sync may generate many errors and may lose synchronization Red the reception is lost or will be lost The telemetry quality factor is computed taking as reference the data stream w...

Страница 74: ...scheme The code definition is given in AD6 extract below Note Punctured code is not supported 6 10 2 Reed Solomon decoding The RTR decoder support RS 255 223 as per CCSDS recommendation AD6 Features...

Страница 75: ...ad In the E2R7 version and after the bit rate configured in the demodulator corresponds to the useful bitrate The software automatically adjusts internal settings to match the transmitted bit rate if...

Страница 76: ...11 Data Quality Encapsulation DQE and Data Quality Metric DQM 6 11 1 DQE As per definition in IRIG106 17 the RTR is able to generate output frames with quality information Several configurations are a...

Страница 77: ...ed without expressed written consent Page 77 6 11 2 DQM The Data Quality Metric is computed according to IRIG106 17 definition BEP LR DQM 1 00E 01 1 11E 01 5211 1 00E 02 1 01E 02 10899 1 00E 03 1 00E...

Страница 78: ...synchronization threshold can vary from 0 to 64 inclusive A programmable mask can also be applied to the synchronization word to ignore corrupted bits in the synchronization word resulting from a spa...

Страница 79: ...errors greater than the synchronization threshold j is programmable between 0 and 15 inclusive referred to as the LTS Lock To Search threshold Note Ambiguity Resolution Ambiguity resolution is perfor...

Страница 80: ...765 768 words Frame Sync Configuration The Sync length always starts from the LSB Right to Left for bit selection Hence 24 bits length will only keep FAF320 from the field Example 3 Sync Word length...

Страница 81: ...c Word Length 32 bits Following are some examples of frame synchronizer configurations with Synchronization word length greater than 32 bits In the following examples we are not considering the differ...

Страница 82: ...P000074 e14r1 This document is the property of Safran Data Systems It cannot be duplicated or distributed without expressed written consent Page 82 Example 2 Sync Word length 40 bits and Words of 8 bi...

Страница 83: ...leur par d faut file_size_max_ko DWORD Default 10 MB 10 1024 Max Value 2047 MB Maximum size of each file in kByte TMU_path Chain Default D ZDS Data TmRecorder Path for file storage Telemetry storage c...

Страница 84: ...0883541 0003549c 19000 0 6 5 00883541 0004f9ac 008856f0 000d9b46 19000 0 7 2 01e282fe 000ec39d 0000009b 00044bf8 19000 3 8 1 01901f5c 0007d278 01903898 0004ae0f 19000 3 Each entry has the following fi...

Страница 85: ...chronization State machine Training sequence not detected Number of detected TS CTL Training sequence detected Training sequence not detected Training sequence detected CTL Training sequence not detec...

Страница 86: ...ounds 5 dB to 40 dB The bar graph is red under SNT conditions orange between SNT and SNT 10 green above MSE status Bounds 25 to 25 dB This is an estimation of the MSE as transmitted bits are unknown t...

Страница 87: ...iption The XML file is as follows xml tag This tag is the XML file input tag configuration tag This tag indicates the configuration part of the XML file frameConfigTmuX tag This tag indicates the conf...

Страница 88: ...o fill the bits 0 to 1 of the Packet Flags of the UDP Packet Header Tag name Type Possible values Default value checksumSize String None 8bits 16bits 32bits 32bits alignmentMode tag This field is used...

Страница 89: ...String xxx xxx xxx xxx xxx 0 to 255 0 0 0 0 udpTimeToLive tag This field is used to set the Time To Live value of each UDP frame Tag name Type Possible values Default value udpTimeToLive Integer 1 to...

Страница 90: ...e14r1 This document is the property of Safran Data Systems It cannot be duplicated or distributed without expressed written consent Page 90 endianness tag This field is used to set the ordering of by...

Страница 91: ...coding 5 Nanoseconds Refer to the full description in the STI 100013 document 2 TM server UDP configuration Path HKLM SOFTWARE IN SNEC rtrnt common servers telemetry Udp Register Key Type Description...

Страница 92: ...command to initialize the Ethernet ports configuration 0 not authorized 1 authorized Default shutdown DWORD Authorization for receiving an extra command to switch off the equipment 0 not authorized 1...

Страница 93: ...Default SyncWord DWORD RS syncword Defaut 0x1ACFFC1D 7 TCP IP or UDP IP frame setup with TPC FEC Path HKLM SOFTWARE IN SNEC rtrnt common fec tpc Register Key Type Description Default Value SyncWordEna...

Страница 94: ...C rtrnt common servers doppler_diag Register Key Type Description Default Value display_acq DWORD Viewer display activation 0 disable 1 enable Default nbcli DWORD Maximum client on the viewer port 9 S...

Страница 95: ...432Node IN SNEC CrtxMcs Tcp Register Key Type Description Default Value AutoReconnect DWORD Automatic reconnexion for Spectrum Analysis Eye diagram and Constellation diagram streams 0 disable 1 enable...

Страница 96: ...rammed AM delay cannot be reached need to increase the IF or AM filter width 0x00000002 User 2 AM Delay 0x00000004 User 3 AM Delay 0x00000008 User 4 M Delay 0x00000010 User 5 AM Delay 0x00000020 User...

Страница 97: ...Major temperature alarm 85 C 0x00000400 FPGA Kintex fan error FAN not running if 65 C Note FAN is off if 55 C 0x00000800 FPGA Virtex fan error 0x40000000 Minor alarm sum 0x80000000 Major alarm sum Tu...

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