Safran CORTEX CRT Quantum User Manual page 278

1.5
1
0.5
0
-0.5
-1
-1.5
Last chip of sequence
The Epoch position is the midpoint between the last and the first chip of the sequence.
When the last and first chip are different, this corresponds to the zero crossing.
Zero crossing of both signals
© Safran Data Systems
COMMAND RANGING & TELEMETRY UNIT CORTEX
CRT QUANTUM USER'S MANUAL
SQPN Q code signal and Epoch position
First chip of sequence = Epoch of the sequence
4
x 10
95 100 105
Epoch position after interpolation by zero insertion
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110 115
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baseband PM signal (real part / sine )
1 2 2
SQPN Q code signal
Safran Data Systems
.
Ref. DTU 100042
Is.Rev. 5.17
Date: Dec.
03, 2021Sept. 30, 2021
Epoch position after RRC filtering
Page 198