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Decoding method, decoding device, equipment and storage device

A technology of a storage device and a decoding device, which is applied in the field of encoding and decoding, can solve problems such as low decoding efficiency, and achieve the effects of improving decoding efficiency, high decoding efficiency, and fast algorithm convergence

Pending Publication Date: 2021-11-05
HOSIN GLOBAL ELECTRONICS CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, this application provides a decoding method, decoding device, equipment and storage medium to solve the problem of low decoding efficiency of existing decoding methods

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  • Decoding method, decoding device, equipment and storage device
  • Decoding method, decoding device, equipment and storage device
  • Decoding method, decoding device, equipment and storage device

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Embodiment Construction

[0051] The technical solution of the present application is described clearly and completely through the following examples. Obviously, the described examples are only some of the examples of the present application, not all of them. In the case of no conflict, the following embodiments and technical features thereof can be combined with each other.

[0052] The embodiment of this application provides a decoding method, which is applied to LDPC code decoding. The schematic flow chart is as follows figure 1 As shown, the decoding method includes:

[0053] S101, after performing preset processing on the codeword to be decoded, obtain the hard decision sequence z=[z 0 ,z 1 ,…,z N-1 ].

[0054] As a kind of linear block code, LDPC code is a kind of binary code word. During the transmission process of the codeword to be decoded, the channel will preprocess it, and the codeword to be decoded will be subject to different degrees of noise pollution during the preprocessing proces...

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PUM

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Abstract

The invention discloses a decoding method, a decoding device, equipment and a storage medium. The method comprises the following steps: carrying out preset processing on a to-be-decoded code word to obtain a hard decision sequence; according to the hard decision sequence and a check matrix H of the code word to be decoded, a syndrome vector S is calculated, H = [hm, n] M * N, and hm and n are elements of the mth row and the nth column of the check matrix; if the syndrome vector is equal to the all-zero vector, outputting a hard decision sequence; otherwise, counting the bit zn corresponding to the element hm, n = 1 to participate in calculation and the number fn of Sm not equal to 0; if fn is greater than or equal to a flipping threshold, flipping the level of the bit zn to obtain a new hard decision sequence, and adjusting the size of the flipping threshold according to the number of flipped bits; and adding 1 to the number of iterations, and carrying out the next round of iterative calculation on the updated hard decision sequence. The method is fast in algorithm convergence, high in decoding efficiency and high in decoding accuracy.

Description

technical field [0001] The present application relates to the technical field of coding and decoding, and in particular to a decoding method, a decoding device, a device, and a storage device. Background technique [0002] Low Density Parity Check (LDPC, Low Density Parity Check) codes are a class of linear codes defined by a parity check matrix, and have been widely used in deep space communications, optical fiber communications, satellite digital video and audio broadcasting, and other fields. [0003] Bit Flipping (BF, Bit Flipping) decoding is a hard-decision decoding method proposed by Gallager, which is applied to LDPC code decoding. Bits. With a limited number of iterations, the number of bits that can be corrected by BF decoding is very limited, and the algorithm converges slowly, resulting in low decoding efficiency. Contents of the invention [0004] In view of this, the present application provides a decoding method, a decoding device, equipment, and a storage...

Claims

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Application Information

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IPC IPC(8): H03M13/11
CPCH03M13/1108H03M13/1148
Inventor 不公告发明人
Owner HOSIN GLOBAL ELECTRONICS CO LTD