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A code recognition method for high signal error rate

A code recognition, high error technology, applied in the field of signal processing, can solve problems such as inability to recognize and restore, achieve strong fault tolerance and improve accuracy.

Active Publication Date: 2021-07-09
成都戎星科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current mainstream signal coding recognition technology cannot complete the coding recognition and restore the decoding information under a certain bit error rate condition.

Method used

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  • A code recognition method for high signal error rate
  • A code recognition method for high signal error rate
  • A code recognition method for high signal error rate

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Embodiment Construction

[0052] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further elaborated below in conjunction with the accompanying drawings.

[0053] In this example, see figure 1 As shown, the present invention proposes a method for realizing code recognition under a high bit error rate of a signal, comprising steps:

[0054] S10, using the synchronization code set to realize the synchronization code search on the demodulated code stream for the input signal, if the search is successful, then identify the block code TPC code or LDPC code; if the search fails, then perform the sequence code, Viterbi code or TCM code identify;

[0055] S20, after the corresponding code is identified successfully in step S10, the code is correspondingly decoded;

[0056] S30, after all the decoding is completed, identify the scrambling code.

[0057] As an optimization scheme of the above-mentioned embodiment, the synchronizati...

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Abstract

The invention discloses a code recognition method for high signal error rate, which comprises the steps of: using a synchronization code set to realize a synchronization code search for a demodulated code stream for an input signal, and if the search is successful, performing a search for a block code TPC code or LDPC If the search fails, then identify the sequence code, Viterbi code or TCM code; after the corresponding code is successfully identified in step S10, the code is decoded accordingly; after all the decoding is completed, scrambling is performed identify. The invention can make full use of the coding gain, can realize the identification of the whole channel coding process, and can realize the coding identification under the high error rate of the signal.

Description

technical field [0001] The invention belongs to the technical field of signal processing, and in particular relates to a code recognition method for realizing high signal error rate. Background technique [0002] At present, the encoding and identification technology of mainstream signals is usually realized under the condition of no bit error. However, in the actual satellite receiving system, there is usually a high bit error rate after demodulation. Afterwards, there are usually several links such as scrambling code, concatenated code, constellation point mapping, and phase ambiguity. Layer peeling can be achieved. The current mainstream signal code recognition technology cannot complete the code recognition and restore the decoded information under a certain bit error rate condition. Contents of the invention [0003] In order to solve the above problems, the present invention proposes a coding recognition method under high signal error rate, which can make full use ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03M13/11
CPCH03M13/1177
Inventor 姚慰杜健王志龚珊耿世磊蒋天立梁京生
Owner 成都戎星科技有限公司