Safran CORTEX CRT Quantum User Manual page 57

Telemetry Simulation
1.6.7.

Simulated telemetry data source Simulated telemetry files (TMS in File mode)

PRBS polynomial & length

Output

SCF

Bit Rate

PCM coding

BPSK modulation

Polarity of transmitted NRZ-L

SCF and BR stability

File size

Automatic BER calculation
Doppler Compensation
1.6.8.
1.6.8.1. Carrier, Sub-Carrier and Bit Rate

Availability

Doppler compensation range

Doppler compensation rate

Doppler compensation sampling 1 s, 0.1 s, 0.01 s and 0.001 s

Doppler compensation step
© Safran Data Systems
COMMAND RANGING & TELEMETRY UNIT CORTEX
CRT QUANTUM USER'S MANUAL
Stored telemetry files (TMS in Replay mode)
Data received on the LAN (TMS in LAN mode)
Pseudo Random Bit Sequence (TMS in Pseudo mode)
15
X + X + 1.32767 bits.
BPSK, BPSK SQUARE, PCM/PM, PCM/FM or direct PCM
40 Hz to 128 kHz (low bandwidth), 40 Hz to 512 kHz (LBW extension)
5 kHz to 2 MHz (high bandwidth, with sub-carrier)
10 bps to 19 kbps (low bandwidth setting), 64 kbps (with LBW extension)
7 bps to 19 kbps with PACK-EXT License, 64 kbps (with LBW extension)
1 to 600 kbps (high bandwidth, sub-carrier)
1 kbps to 20 Mbps (high bandwidth, direct PCM) and 40 Mbit/s in case
of use of Viterbi ½ and 100k - 25Mbit/s in case of Tcm decoding
NRZ-L/M/S, BP-L/M/S, DBP-M/S, DM-M/S, V35
ON or OFF
Normal or inverted
As per the reference clock (external or internal)
32768 bytes (File mode). No limitation (Replay mode)
Yes (TMS in Pseudo mode)
CRT XL Quantum : uplink only, licence dependant
CRT eXplorer : uplink and downlink
± 4 MHz
3 mHz/s to 52 kHz/s
NCO refreshed every 160 µs, 16 µs, 1.6 µs and 0.16 µs
This document is the property of Safran Data Systems.
It cannot be duplicated or distributed without expressed written consent.
Ref. DTU 100042
Is.Rev. 5.17
Date: Dec. 03, 2021Sept.
30, 2021
Page 32