Safran CORTEX CRT Quantum - High Bandwidth Direct PCM: AQPSK

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 93
3.3.7.8. High Bandwidth Direct PCM: AQPSK
This demodulation scheme requires two independent TMU.
a- Nominal case (TMU table/offset 26 = 0. GUI: Frame Sync. Input = Internal):
Differential
decoder
Frame
Synchronizer
Differential
encoder
I out
AQPSK
demodulator
& B/S
IF inputs
Aux. inputs
Viterbi
decoder
(Option)
I
Q
Differential
decoder
Viterbi
decoder
I
Differential
encoder
I out
(Option)
Frame
Synchronizer
.
.
(Option)
(Option)
invert/
swap
invert/
swap
b- External Input to Frame Synchronizer (TMU table/offset 26 = 1. GUI: Frame Sync. Input = Ext.
F/S):
Differential
decoder
Frame
Synchronizer
Differential
encoder
I out
AQPSK
demodulator
& B/S
IF inputs
Aux. inputs
Viterbi
decoder
(Option)
I
Q
Differential
decoder
Viterbi
decoder
I
Differential
encoder
I out
(Option)
Frame
Synchronizer
(Option)
(Option)
invert/
swap
invert/
swap
I in I in