Safran CORTEX CRT Quantum, User Manual

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COMMAND RANGING & TELEMETRY UNIT CORTEX
CRT QUANTUM USER'S MANUAL
Ref. DTU 100042
Is.Rev. 5.17
Date: Dec.
03, 2021Sept. 30, 2021
© Safran Data Systems
This document is the property of
Safran Data Systems
.
It cannot be duplicated or distributed without expressed written consent.
Page 113
3.4.1.2.
High Bandwidth Scenario

The IF carrier is modulated by a video or/and PCM signal.

In case of single high bandwidth PCM signal, all modulation schemes are supported:
PCM/PM, PCM/FM, BPSK, QPSK, OQPSK modulation, with filtering capability (matched
filters).

Sub-carrier generation can be by-passed.

Signal bandwidth:
≤ 2 MHz if the sub-carrier is enabled or up to 40 Mbps for direct PCM
modulation (modulation dependent).

TCU or TMS monitoring (data + clock) on output test points if one data I/O test set is
enabled (see section 2.3.4.2 and Annex 5).

External data & clock input on test points if one data I/O test set is enabled (see section
2.3.4.2 and Annex 5).

IFM factory setting: PCM only or Video + PCM or PCM + PCM ). Sub-carriers are not
allowed in PCM and PCM + PCM modes.
3.4.1.2.1. PM and FM Modulation
3.4.1.2.1.1.
Single PCM Input Signal
Modulation
index
PM, FM
modulation
IF
filtering
(Option)
Noise
IF
outputs
(Option)
Video
Input
Sub-carrier
modulation
Modulation
index
Modulation
index
PCM
& convolutional
encoding
Built-in TMS or TCU
External data + clock
Data & clock
monitoring
PCM
& convolutional
encoding
Figure 52: High Bandwidth Uplink Scenario with PCM Input Signal (PM, FM)