Control - Safran CORTEX Series User Manual

4.5.4.5.1

Control

Parameters in this window are described in DMU.
TCM DECODER
VITERBI DECODER
© Safran Data Systems – IMP000074 e14r1
HIGH DATA RATE RECEIVER
HDR-4G+ USER'S MANUAL
TCM decoder setting , in 8PSK mode:
 Off TCM disabled
 2.00/3
TCM 2.00 enabled
 2.25/3
Not implemented today
 2.50/3
TCM 2.50 enabled
 2.75/3
TCM 2.75 enabled
Inportant: TCM and Viterbi decoding are mutually exclusive.
Viterbi decoder setting for the I Channel in BPSK or UQPSK (AQPSK, AUQPSK,
AUSQPSK) mode or for both I & Q Channels in QPSK, OQPSK (SQPSK) mode:
 Off
Viterbi decoder disabled

 G1
G2 Inv
first

 G1
G2
first.

 G2 Inv
G1
first

 G2
G1
Refer to the CCSDS recommendations for "G2 Normal/ G2 Inverted" definition.
It cannot be duplicated or distributed without expressed written consent.
Ref.
Is.Rev
Date:
Viterbi decoder enabled with G2 inverted. G1transmitted
(CCSDS recommendation)
Viterbi decoder enabled with G2 normal. G1 transmitted
Viterbi decoder enabled with G2 inverted. G2 transmitted
Viterbi decoder enabled with G2 normal. G2 transmitted first
Safran Data Systems
This document is the property of
DTU 100782
3.5
June 1, 2021
.
Page 278