Safran CORTEX Series - Telemetry Demodulation; Telemetry Processing

HIGH DATA RATE RECEIVER
HDR-4G+ USER’S MANUAL
Ref. DTU 100782
Is.Rev 3.5
Date: June 1, 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 32
Telemetry Demodulation 1.3.3
 Input frequency:
 720 MHz nominal, tunable between 530 and 910 MHz
 1.2 GHz nominal, tunable between 910 MHz and 1490 MHz
 2.4 GHz nominal, tunable between 1,65 GHz and 3.15 GHz
 1.25 GHz nominal, tunable between 500 MHz and 2400 MHz
 Automatic carrier acquisition
 BPSK, QPSK, OQPSK (SQPSK), UQPSK (AQPSK, AUQPSK, AUSQPSK), 8PSK, GMSK,
SOQPSK, 16QAM, 16APSK, 32APSK, 64APSK 128 APSK 256APSK demodulation
 Equalization filter: static or auto-adaptive (DEAF)
 Automatic compensation for cross-polarization perturbations(XDEAF)
 Adjacent channel rejection filters
 Bit synchronization
 Fully digital matched and shaped filters: Raised Cosine, Root Raised Cosine, GMSK, SOQPSK
shaping filter (CCSDS and IRIG standard), User defined
 Viterbi decoding: single or dual mode, ½ (+ puncture) or ¼ rate, single or parallel processing
(stacked Viterbi)
 De-scrambler: CCITT V.35 and Intelsat V.35
 4D-TCM (Trellis Coded Modulation) decoding
 DVB-S2, DVBS2X, SCCC and SCCC-X standards supported
 Multiple Demodulation capability up to 8
Telemetry Processing 1.3.4
 Multi-channel architecture (up to 8 parallel channels – Multi DPU processing)
 Transport Layer for RS DVB or LDPC decoders (Asynchronous decoding layer)
 CADU Frame synchronization (CCSDS Transfer layer)
 Data time-tagging (internal, external IRIG B signal or external NTP server)
 De-randomization, De-interleaving, Virtual filling, Reed-Solomon decoding (supported standard:
CCSDS, DVB-S, ECSS)
 CRC frame checking
 CCSDS Low Density Parity Check decoding (LDPC 7/8, AR4JA ½ 2/3 4/5 )