Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of ldpc encoding method and device

An encoding method and a technology for encoding data, which are applied in the field of LDPC encoding methods and devices, can solve the problems that the code word level and check code length cannot be flexibly adjusted, etc.

Active Publication Date: 2021-07-27
HUNAN GOKE MICROELECTRONICS
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This application provides an LDPC encoding method and device to solve the problem in the prior art that the code word level and check code length cannot be adjusted flexibly

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of ldpc encoding method and device
  • A kind of ldpc encoding method and device
  • A kind of ldpc encoding method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] See figure 1 , A flow chart of an LDPC encoding method provided herein. like figure 1 As shown, the method includes:

[0024] 101, get the data to be encoded.

[0025] Since the external interference may cause transmission data loss or abnormality during the data transmission, the receiving end of transmitting data does not know if the received data is initial transmission data. In order to ensure the transmission of data accuracy, one check value calculated by the original data is usually used in a formulation method, and the receiving end check value and the original data are calculated. If the value of each verification is zero, the data is correct. If the verification is not all zero, the data has an error. The error data can be corrected according to the calculation results of the verification.

[0026] For transmission data, calculate the verification value of the transferred data, and the transmission data and verification value are determined as the new transmission...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The application discloses an LDPC encoding method and device, which relate to the technical field of data processing and are invented to solve the problem that the length of a code word and the length of a check code cannot be flexibly adjusted. The method mainly includes: obtaining the data to be coded; using the preset check code length as the number of rows and the preset code length as the number of columns to construct a sparse check matrix, the sub-matrix of the check matrix is ​​an all-zero matrix or An identity matrix arranged cyclically; according to the parity check matrix, a check code of the data to be encoded is calculated; according to the check code, LDPC encoded data of the data to be encoded is generated. This application is mainly used in the process of data encoding.

Description

Technical field [0001] The present application relates to the technical field of data processing, and more particularly to an LDPC encoding method and apparatus. Background technique [0002] LDPC (LowDensityParityCheckcode, low density parity code) is a class of linear code defined by the check matrix, which is feasible to make the decoding, when the code length is longer, the check matrix is ​​required to satisfy "sparsity", that is, the check matrix 1 The density is relatively low, that is, the number of numbers in the calibration matrix is ​​far less than 0. Assume the data s = (s 1 , S 2 , ... s k ), The data after encoding is c = (c 1 , C 2 , ... c n ), Where k is the data length, n is the length of the codeword, M = N-K is the length of the calibration code. Formula C · H during the LDPC decoding process T = 0 is established, where H is the check matrix. During the LDPC encoding process, the formula C = S · g, where g is a matrix. From this, G and H meet G · H T = 0. [00...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H03M13/11
CPCH03M13/1148
Inventor 祝博杨应麟彭鹏姜黎
Owner HUNAN GOKE MICROELECTRONICS