Safran CORTEX Series - Multi-DGU Support; Figure 58: Example of 2 Dgus Merging for Simulation of Independent I;Q Transmission in QPSK

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 165
Example: Code 6 QPSK
I*[n-1]
Q*[n-1]
I[n]
Q[n]
I*[n]
Q*[n]
0
0
0
0
1
1
0
0
0
1
0
0
0
0
1
0
1
0
0
0
1
1
0
1
0
1
0
0
1
0
0
1
0
1
0
1
0
1
1
0
0
0
0
1
1
1
1
1
1
0
0
0
0
1
1
0
0
1
1
0
1
0
1
0
1
1
1
0
1
1
0
0
1
1
0
0
0
0
1
1
0
1
1
1
1
1
1
0
0
1
1
1
1
1
1
0
The last two columns have to be read from bottom to top:
I
n
: 1010 0110 1001 0101 = 0xA695
Q
n
: 0110 0101 1010 1001 = 0x65A9
Then the explicit DNRZ Code is 0xA69565A9.
Multi-DGU support 3.6.2.4
The test modulator has firmware-dependent support of multiple data sources. This enables simulation
of transmitting schemes with multiple interleaved logical data units. Here are a few examples of the
available schemes:
Figure 58: Example of 2 DGUs merging for simulation of independent I/Q transmission in QPSK
DGU1
Max : 1,6 Gbps
DGU2
Max : 1,6 Gbps
PCM
Viterbi
QPSK
Modulator
Max : 3,2 Gbps
I
Q
Symbols
To IF1 and/or IF2