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Error-containing cascaded code identification method based on template matching

A technology of template matching and recognition method, which is applied in the direction of coding, error prevention, code conversion, etc., to achieve the effect of rich recognition types and styles and high recognition accuracy

Active Publication Date: 2020-09-29
成都云溯新起点科技有限公司
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for identifying error-containing concatenated codes based on template matching, which solves the problem of identifying the encoding parameters of error-containing concatenated codes under the premise of known channel code sets. promotion;

Method used

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  • Error-containing cascaded code identification method based on template matching
  • Error-containing cascaded code identification method based on template matching
  • Error-containing cascaded code identification method based on template matching

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Embodiment Construction

[0040] Below in conjunction with the appendix of the present invention Figure 1~2 , clearly and completely describe the technical solutions in the embodiments of the present invention, obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementation technical solutions obtained by those skilled in the art without making creative efforts.

[0041] An error-containing concatenated code recognition method based on template matching:

[0042] S1. Collect the constellation point data output by the demodulator, and obtain the demodulated constellation point data;

[0043] S2. Traversing all possible constellation map mapping relationships and possible constellation map phase ambiguities. If the traversal is completed, the method is terminated; otherwise, the demodulated constellation point data is demapped according to the current constellation map mapping rel...

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Abstract

The invention relates to the technical field of communication, aims to provide an error-containing cascaded code identification method based on template matching, and discloses an error-containing cascaded code identification method based on template matching in the communication field, which can be applied to the related fields of cognitive communication, communication reconnaissance, informationsecurity and the like. According to the method, a mechanism based on multi-layer verification is adopted, and the purpose of cascade code recognition under the high error code condition is achieved through the technical methods of constellation diagram mapping relation searching, internal and external code verification, scrambling code judgment based on a template and the like. The method is highin identification accuracy, an optimized search and verification strategy is adopted, the identification speed can be greatly increased, and the method is particularly suitable for the fields of information countermeasure, radio monitoring and cognitive communication and has practical significance.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to an error-containing concatenated code identification method based on template matching, and is especially suitable for solving channel code identification problems in the fields of cognitive communication, communication confrontation, and the like. Background technique [0002] At present, in cognitive communication, due to electromagnetic environment factors such as channel and time delay, the communication quality will be poor. Sometimes it is necessary to replace the channel coding system according to the requirements of communication quality and capacity. In this communication environment, communication cannot be realized through protocols. Contact and exchange coding parameters, so a technical method is needed to quickly and accurately identify and judge various coding systems in the database. The existing channel coding parameter identification methods use statistica...

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Application Information

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IPC IPC(8): H03M13/29H03M13/00H04L1/00
CPCH03M13/2903H03M13/612H04L1/0064
Inventor 涂世龙陈永明万坚
Owner 成都云溯新起点科技有限公司
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