COMMAND RANGING & TELEMETRY UNIT CORTEX
CRT QUANTUM USER'S MANUAL
Ref. DTU 100042
Is.Rev. 5.17
Date: Dec. 03, 2021Sept.
30, 2021
This document is the property of Safran Data Systems.
It cannot be duplicated or distributed without expressed written consent.
3.6.13.4. Integration Time ...................................................................................................................................................... 194
3.6.13.5. Ranging Sequence .................................................................................................................................................... 194
3.6.13.6. Hybrid Ranging Calibration ..................................................................................................................................... 196
3.6.13.6.1. SQPN Epoch Position and Ranging Tones Coherency and Synchronisation ..................................................... 196
3.6.13.6.2. Ranging Calibration Operation ........................................................................................................................... 199
3.6.14. Ranging Performance Vs Noise & Doppler ............................................................................................... 200
3.7. DOPPLER COMPENSATION ................................................................................................................................ 201
3.7.1. General ...................................................................................................................................................... 201
3.7.2. Concerned Units ........................................................................................................................................ 201
3.7.3. Doppler Compensation Process ................................................................................................................ 202
3.7.3.1. Doppler Compensation Mechanism ......................................................................................................................... 203
3.7.4. Dopple Compensation Instruction Set ....................................................................................................... 205
3.7.4.1. Doppler Table Initialization ..................................................................................................................................... 205
3.7.4.2. Append Doppler Table ............................................................................................................................................. 205
3.7.4.3. Clear Doppler Table ................................................................................................................................................. 206
3.7.4.4. Save Doppler Table.................................................................................................................................................. 206
3.7.4.5. Load Doppler Table ................................................................................................................................................. 206
3.7.4.6. Doppler Table Start Date ......................................................................................................................................... 206
3.7.4.7. Doppler Table End Date .......................................................................................................................................... 206
3.7.5. Time Management ..................................................................................................................................... 207
3.8. RF STAGE .......................................................................................................................................................... 208
3.8.1. DownLink Cannels..................................................................................................................................... 209
3.8.1.1. Input Frequency ....................................................................................................................................................... 210
3.8.1.2. Input Gain ................................................................................................................................................................ 211
3.8.2. UpLink Channels ....................................................................................................................................... 212
3.8.2.1. Output Frequency .................................................................................................................................................... 213
3.8.2.2. Output Level ............................................................................................................................................................ 214
3.8.3. Calibration................................................................................................................................................. 214
3.8.4. Reference Clock Interface .......................................................................................................................... 215
3.8.5. Interconnection .......................................................................................................................................... 217
4. OPERATION MANUAL ....................................................................................................... 218
4.1. STARTING AND CONFIGURING THE CORTEX ................................................................................................... 218
4.1.1. First Steps .................................................................................................................................................. 218
4.1.1.1. Starting the PC Workstation .................................................................................................................................... 218
4.1.1.2. Starting the Signal Processing Software .................................................................................................................. 219
4.1.1.3. Starting the Monitoring & Control Software ........................................................................................................... 219
4.1.2. Factory Configuration ............................................................................................................................... 220
4.1.3. Software Exit & CORTEX Shutdown ......................................................................................................... 220
4.1.3.1. Exiting the Monitoring & Control Software ............................................................................................................ 220
4.1.3.2. Exiting the Signal Processing Software ................................................................................................................... 220
4.1.3.3. Restarting the SPS & MCS ...................................................................................................................................... 220
4.1.3.4. Cortex Shutdown ..................................................................................................................................................... 221
4.1.4. 4U Chassis Screen Saver ........................................................................................................................... 221
4.1.5. 2U Chassis Front Panel Display ............................................................................................................... 222
4.1.5.1. Overview.................................................................................................................................................................. 222
4.1.5.2. Capabilities .............................................................................................................................................................. 223
4.1.5.3. Menu Description .................................................................................................................................................... 223
4.1.5.4. Functional Description ............................................................................................................................................. 224
4.1.5.4.1. Shutdown System ............................................................................................................................................... 224
4.1.5.4.2. Network .............................................................................................................................................................. 224
4.1.5.4.2.1. Change LAN Mode ........................................................................................................................... 224
4.1.5.4.2.2. Change IP Address, SubNet Mask or Gateway Address in Static Mode ..................................... 225
4.1.5.4.3. Rename WorkStation ......................................................................................................................................... 225
4.1.5.4.4. Configure Additional Status ............................................................................................................................... 226
4.1.6. Third-Party Software ................................................................................................................................. 227
4.2. SIGNAL PROCESSING SOFTWARE ..................................................................................................................... 228
4.2.1. CTX Documents ......................................................................................................................................... 228
4.2.2. SPS Start Sequence .................................................................................................................................... 228
4.2.3. Configuring the CORTEX from CTX Documents ...................................................................................... 229
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