Safran CORTEX Series - Data from File; File Format; Cycle Length; Figure 54: 10-Bit Generator with Feedbacks after Register 3 and 0

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 156
Figure 54: 10-bit generator with feedbacks after register 3 and 0
Next table describes all PRBS generators available:
PRBS
Generators
Length in bits
Feedback after
Comments
PRBS 7


    127
Register 1, 0
PRBS 10


    1,023
Register 3, 0
PRBS 11


    2,047
Register 2, 0
PRBS 15


    32,767
Register 1, 0
PRBS 15 is configured according to
CCITT Rec. 0.151/152/153
PRBS 23


    8,388,607
Register 5, 0
PRBS 23 is configured according to
CCITT Rec. 0.151/152/153
PRBS 31


    2,147,483,647
Register 3, 0
Table 13: PRBS Generators for BER Analysis
Data from File 3.6.1.1.2
File Format 3.6.1.1.2.1
Data can be retrieved from files on the disk.
Files are hexadecimal-coded and can be edited using Notepad or any other text editor.
Access path to the simulated telemetry files is:
D:\ZDS\Data\HDR\SPS\BER\
Cycle Length 3.6.1.1.2.2
Parameter Cycle Length specifies which part of the file must be modulated. It can be set to any value
from 32 to 2
22
– 1 = 4,194,303 bytes.
0123456789
PRN10 Data