Safran CORTEX CRT Quantum - Table 23: Prn Generator Polynomials

COMMAND RANGING & TELEMETRY UNIT CORTEX
CRT QUANTUM USER'S MANUAL
Ref. DTU 100042
Is.Rev. 5.17
Date: Dec.
03, 2021Sept. 30, 2021
© Safran Data Systems
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Page 122
 BERT PRN: the data are generated from pseudo-noise sequence. The generator
polynomial is selected by the parameter PRN generator polynomial degree, according to
the following table. The vector of initial states is in every case at the value 1. The sequence
length is (2
polynomial degree
)-1.
The BER is measured by processing with the same polynomial the data received by the
Telemetry Unit selected owing to the parameter TM Flow for BER. The TMU Frame
Synchronizer has to be disabled.
degree
polynomial
degree
polynomial
degree
polynomial
5
x
5
+x
3
+1
12
x
12
+x
11
+x
8
+x
6
+1
19
x
19
+x
18
+x
17
+x
14
+1
6
x
6
+x
5
+1
13
x
13
+x
12
+x
10
+x
9
+1
20
x
20
+x
17
+1
7
x
7
+x
6
+1
14
x
14
+x
13
+x
8
+x
4
+1
21
x
21
+x
19
+1
8
x
8
+x
6
+x
5
+x
4
+1
15
x
15
+x
14
+1
22
x
22
+x
21
+1
9
x
9
+x
5
+1
16
x
16
+x
15
+x
13
+x
4
+1
23
x
23
+x
18
+1
10
x
10
+x
7
+1
17
x
17
+x
14
+1
11
x
11
+x
9
+1
18
x
18
+x
11
+1
Table 23: PRN generator polynomials