Reed-solomon (RS) code coding parameter blind identification method

A technology of coding parameters and blind recognition, which is applied in cyclic codes, digital transmission systems, data representation error detection/correction, etc., to achieve the effect of simple algorithm, clear process and fast recognition speed

Inactive Publication Date: 2014-08-13
36TH RES INST OF CETC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] RS codes are widely used in modern communications, but how to correctly identify the relevant parameters encoded by RS codes so as to decode them correctly is still rarely reported.

Method used

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  • Reed-solomon (RS) code coding parameter blind identification method
  • Reed-solomon (RS) code coding parameter blind identification method
  • Reed-solomon (RS) code coding parameter blind identification method

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Embodiment Construction

[0027] The present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments. These examples should be understood as only for illustrating the present invention but not for limiting the protection scope of the present invention. After reading the contents of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent changes and modifications also fall within the scope defined by the claims of the present invention.

[0028] Such as figure 1 As shown, the blind identification method of the RS code encoding parameters provided by the preferred embodiment of the present invention includes the following steps:

[0029] ① Select a sequence of appropriate length as the identification sequence according to the received data, and determine the number p of matrix rows to be arranged, where p is at least twice the equivalent linear block code length (mn)...

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Abstract

The invention discloses a reed-solomon (RS) code coding parameter blind identification method. In the method, after a grouping length and a grouping starting point of equivalent binary linear grouping codes are determined in a grouping stage, a matrix is transformed, a checking matrix of the equivalent grouping codes is determined, and a generating polynomial and a component polynomial of the grouping codes are further determined by a symbol number m. By the method, the problems of reed-solomon (RS) code grouping length determination, grouping starting point determination, RS code generating polynomial determination, RS code component polynomial determination and the like are relatively better solved, and the blind identification of RS code coding parameters can be realized by communication contents; and the method has the characteristics of simple algorithm, clear process, high identification speed and the like, and is applied in the fields of intelligent communication, communication reconnaissance, information countermeasures and the like.

Description

technical field [0001] The invention relates to a method for blindly identifying encoding parameters of RS codes (including its punctured codes) in a digital communication system, and is suitable for fields such as intelligent communication, communication reconnaissance, and information confrontation. Background technique [0002] RS codes are widely used in modern communications, but how to correctly identify the relevant parameters encoded by RS codes and decode them correctly is still rarely reported. As an important subclass of non-binary BCH codes widely used in digital communications, RS codes have characteristics different from binary linear block codes, so their blind recognition is better than general binary linear block codes (such as Hamming codes, Golay codes, etc.) , CRC code, general BCH code, etc.) are different, and its identification should be based on the symbol, rather than a single 0 and 1. [0003] Liu Yujun and others introduced some properties of RS c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H03M13/15
Inventor 张永光楼财义
Owner 36TH RES INST OF CETC
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