Safran CORTEX CRT Quantum - Page 31

COMMAND RANGING & TELEMETRY UNIT CORTEX
CRT QUANTUM USER'S MANUAL
Ref. DTU 100042
Is.Rev. 5.17
Date: Dec. 03, 2021Sept.
30, 2021
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Page 6
1.3.2. Satellite Telecommanding
 Reception and checking of TCP-IP telecommand messages from the Telecommand Clients,
 PCM encoding,
 Modulation at baseband (FSK, BPSK, BPSK+AM, etc…),
 IF modulation (PM or FM) and Doppler compensation,
 Compliance to CCSDS recommendations (COP1),
 Loopback demodulation/verification.
1.3.3. Satellite Tracking (Range and Doppler Measurement)
 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 measurement,
 Ambiguity resolution and distance computation,
 Range data time-tagging and transmission to the Ranging Clients.
 Doppler measurement and time-tagging.
1.3.4. Simulation & Testing
The CORTEX CRT Quantum incorporates powerful built-in simulation capabilities for functional and performance
test purposes:
 Simulation of a PSK or PCM telemetry signal from TM formats stored on the hard disk or received over the
ETHERNET LAN from a remote Simulation Client,
 IF modulation (PM, FM, BPSK, QPSK, OQPSK, AQPSK, 8PSK),
 Automatic BER measurement,
 Real time IF spectrum analysis,
 Equipment self-testing at boot,
 Noise generation (option).