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 19
3.1.
Monitoring & Control
Refer to the Cortex CRT TCP/IP Interface Document, STI 100013_CRT in Annex 1.
3.1.1.
Monitoring
3.1.1.1.
Standard Monitoring Protocol
The CORTEX CRT Quantum supplies its status upon request from a Monitoring Client. On reception of a
monitoring request, the CORTEX CRT Quantum checks its validity. If the request is correct, it returns a
monitoring message embedded in an ETHERNET packet to the Control Center. In case of invalid request, the
CORTEX CRT Quantum returns a negative acknowledgment message.
A monitoring message contains the current configuration of the unit (expected frequency, operating mode, etc...),
dynamic status (IF level, Eb/No, frequency offset, etc...) and alarms (Time alarm, hardware alarm, etc...).
Depending on the configuration of the CORTEX CRT Quantum at delivery, up to nine functional units are
available:
Unit Description
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 synchronization
TCU Telecommand Unit : performs TC data modulation at baseband, TC tones transmission
RAU Ranging Unit : performs tone generation and demodulation, phase and distance
measurement
TMS Telemetry Simulator : generates a BPSK or PCM telemetry signal for test purposes
IFM IF Modulator : performs modulation at IF (FM, PM, BPSK, QPSK, OQPSK, AQPSK)
DCU Diversity Combining Unit : polarization combining in post-detection mode
NGU Noise Generator Unit
Table 17: The Functional Units of the CORTEX CRT Quantum
For test purpose (telemetry BER and range measurement degradation with noise), a Noise Generator license
can be provided (no additional hardware required) for adding noise to the uplink IF carrier (optional feature).
The Monitoring Client can request:

the high-level monitoring table of the CORTEX CRT Quantum,

the monitoring table of a particular unit (IFR, TMU, IFM, TCU, TMS, Noise Generator, etc…),

the project-specific monitoring table,

the whole set of monitoring tables.
Up to eight Monitoring Clients can be simultaneously connected to the Monitoring port. For more detail on the
contents of the monitoring messages, refer to Annex 1.