Safran CORTEX CRT Quantum - QPSK and OQPSK Modulation; Without Convolutional Encoding

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 116
3.4.1.2.3. QPSK and OQPSK Modulation
3.4.1.2.3.1. Without Convolutional Encoding
 PCM encoding is disabled,
 In case of external PCM input, I & Q signals must be phase-aligned, even for OQPSK
modulation (half-symbol offset on Q channel is by the IFM).
Q or OQPSK
modulation
IF
filtering
(Option)
Noise
IF
outputs
(Option)
TMS data
I/Q Switch
I out Q out
(Option)
Q or OQPSK
modulation
IF
filtering
(Option)
Noise
IF
outputs
(Option)
TMS data
I out I in Q in
(Option)
I out
Figure 55: High Bandwidth Uplink Scenario ( QPSK, OQPSK without Convolutional Encoding)