Safran CORTEX Series - Control; IF Processing

HIGH DATA RATE RECEIVER
HDR-4G+ USER’S MANUAL
Ref. DTU 100782
Is.Rev 3.5
Date: June 1, 2021
© Safran Data Systems – IMP000074 e14r1
This document is the property of Safran Data Systems.
It cannot be duplicated or distributed without expressed written consent.
Page 260
Control 4.5.4.1.1
Parameters in this window are described in DMU.
IF Processing 4.5.4.1.1.1
INPUT PORT
IF input port selection (for 720 MHz or 1.2 GHz IF)
IF1 Nom , IF1 Alt
IF2 Nom, IF2 Alt
IF input port selection (for Wide Band)
IF1 Nom , IF1 Alt
INPUT FREQUENCY
Expected IF 520 to 920 MHz (nominal 720 MHz IF input) or 960 to 1600 MHz
(nominal 1.2 GHz IF input). expressed in Hz. Enter any value in float or real format.
Example: for 720 MHz, type: 72e+7 or 720000000. The programmed value is always
displayed in float format. Resolution step: 32-bit float format.
ACQUISITION RANGE
Carrier acquisition peak range (from the expected carrier frequency) and PLL tracking
range. Expressed in Hz. Enter any value from 10,000 to 2e6. Select a value that takes
into account the frequency offset in the worst operational conditions. (Doppler,
frequency uncertainties, etc.).
Carrier acquisition can be restarted at any moment by clicking on .
DEMODULATION
 BPSK
 QPSK
 OQPSK
 UQPSK
 8PSK
 16QAM
 16APSK
 32 APSK
 64 APSK
For GMSK
For SOQPSK
BPSK demodulation.
QPSK demodulation.
OQPSK or SQPSK or SOQPSK demodulation.
UQPSK or AQPSK, AUQPSK, AUSQPSK demodulation
8PSK demodulation
16 QAM demodulation
16 APSK demodulation
32 APSK demodulation
64 APSK demodulation
Select OQPSK + Matched filter = GMSK and then enter BTs value
Select OQPSK + Matched filter = SOQPSK and then select the
dedicated filter
VCM - 8PSK/OQPSK
Enable the automatic switch function between 8PSK and OQPSK demodulation. This
function is only available with OQPSK and 8PSK modulation. In this mode, the
programmed symbol rate is constant.