奇偶校验码

一种低密度奇偶校验码矩阵的设计方法

Design Method for Low Density Parity Code Matrix

针对有限状态Markov信道，提出一种改进的低密度奇偶校验码（low-DensityParity-check，LDPC）译码算法，并给出其因子图表示。

An improved decoding algorithm for low-density parity-check code ( LDPC ) on finite-state Markov channels was presented and the corresponding factor graph representation was given .

用神经元MOS实现了奇偶校验码系统。

Parity check system based on neuron-MOS is designed .

多重级联奇偶校验码的FPGA实现一种新型的多维Turbo码联合交织器设计

The FPGA Implement of Multi-Dimensional Concatenated Single Parity Check Codes ; A New Joint Interleaver Design for Multiple Turbo Codes

信道编译码一直是通信理论中的研究热点，低密度奇偶校验码（Low-DensityParity-CheckCodes，LDPC）就是研究热点之一。

The channel coding theory is a hot research on communication system , and one of them is Low-density-parity-check codes ( LDPC ) .

作为信道纠错码的一种，低密度奇偶校验码（LDPC）以其较低的译码复杂度和逼近香农极限的良好性能成为当今信道编解码领域最瞩目的研究热点。

Low-density Parity-Check ( LDPC ) code is distinguished in channel encoding and decoding realm for its low implementation complexity and near-to-Shannon-limit performance .

低密度奇偶校验码（LDPC码）的研究和实现，是继Turbo码之后在纠错编码领域的又一重大进展。

Low density parity check ( LDPC ) codes , which are recognized as the most significant breakthrough after Turbo codes , draws increasing attention from all over the world .

本文介绍低密度奇偶校验码（LDPC）的基本原理，包括它的基本特性、编码方式、译码算法原理。

This paper introduces the principles of Low-density parity check ( LDPC ) codes , including the basic characteristic , encoding scheme , decoding scheme .

LDPC（低密度奇偶校验码）码是近年来受到广泛关注的新一代高性能纠错码。

LDPC ( Low-Density Parity-Check ) code is one kind of new generation error-correcting code of high performance , which has been attached importance to recent years .

低密度奇偶校验码（LDPC）码是由Gallager在1962年首先提出的一种纠错码，在沉寂了多年之后，最近又重新成为通信技术研究的热点。

Low Density Parity-Check ( LDPC ) Codes were first discovered by Gallager in the early 1960s and recently have been rediscovered and generalized .

正交幅度调制（QAM）和低密度奇偶校验码（LDPC）技术应用于很广泛的领域，如无线通信、有线电视传输、卫星通信等领域。

Both Quadrature Amplitude Modulation ( QAM ) and Low Density Parity Check Code ( LDPC ) are widely used in such fields as wireless communication , wired television transmission and satellite communication .

Gallager在1962年提出的低密度奇偶校验码（Low-DensityParity-CheckCodes，LDPC）是一类可以用稀疏矩阵或二分图定义的线性分组码。

Low-density parity-check codes ( LDPC ) first discovered by Gallager in 1962 are a class of linear block error-correcting codes that can be defined by the very sparse parity-check matrix or the bipartite graph .

提出了一种高效的Internet上语音包丢失恢复技术，采用了基于奇偶校验码的加载式前向纠错编码（PPFEC）技术，可以在网络存在丢包情况下无损恢复大部分丢失帧信息。

This paper presents an efficient packet loss recovery technique for voice over Internet based on parity-based piggy-backed forward error correction technique ( PPFEC ), which can recover most of the lossy packets during the lossy network .

其他RAID级别包括RAID-5和RAID-6，RAID-5跨磁盘包含分布式奇偶校验码的块级条带化，RAID-6包含带有双重分布式奇偶校验的块级条带化。

Other RAID levels include RAID-5 , which includes block-level striping with distributed parity codes across disks , and RAID-6 , which includes block-level striping with double distributed parity .

低密度奇偶校验码（LDPC码）以其自然并行的译码算法和优异的纠错性能，近十几年来受到海内外众多研究学者的极大关注。

In the last decade , because of its innate parallel decode algorithm and excellent error correction performance , Low-Density Parity-Check code ( LDPC code ) have been received close attention from numerous of investigator at home and broad .

基于有限几何低密度奇偶校验码（FG-LDPC）译码性能、复杂度和时延，提出了一种混合比特翻转（BF）和大数逻辑译码（MLG）的译码方法。

Based on decoding performance , complexity and latency of finite-geometry low-density parity-check ( FG-LDPC ) codes , an efficient decoding algorithm is proposed . The new algorithm is a hybrid bit-flipping ( BF ) / majority-logic ( MLG ) decoding scheme .

低密度奇偶校验码迭代译码算法的误码平台特性

Error floor properties of low-density parity-check codes using iterative decoding algorithms

结构化低密度奇偶校验码编码算法与关键技术研究

Research on Encoding Theory and Key Techniques of Structure Low-Density Parity-Check Codes

累加交叉并行级联单奇偶校验码的低复杂度译码算法

A Low Complexity Decoding Algorithm for Accumulated-Crossover Parallel-concatenated SPC Codes

低密度奇偶校验码的研究及其应用

The Research on the Low-density Parity-check Codes and Their Application

基于稀疏二进制序列的低密度奇偶校验码

Low - density parity - check codes based on sparse binary sequences

低密度奇偶校验码及其并行级联构造的研究

Research on Low-Density Parity-Check Codes and Their Applications in Parallel Concatenation Structure

多维奇偶校验码的纠错效果分析

An Analysis on the Error - Correcting Effect of Multi-Dimension Parity Checking Code

基于二分图低密度奇偶校验码围长计算方法

An Algorithm for Checking Girth of Low Density Parity Check Codes in Bipartite Graphs

计算机网络用多维奇偶校验码

A multidimensional parity check code for computer network

基于完备循环差集低密度奇偶校验码的构造

Construction of Low-density Parity-check ( LDPC ) Codes Based on Prefect Cyclic Difference Sets

低密度奇偶校验码是一类逼近香农限（信道容量）的线性分组码。

Low-density parity-check codes are a class of linear block codes which approach Shannon limit .

随着码率升高，并串联奇偶校验码的性能分界点会移向更低误码率区，且两者的性能之差也会逐渐变小。

When code rate increases , the performance crossover between parallel and serial coding structures moves to lower bit error rate region and their performance difference decreases .

水印信息由认证水印比特、奇偶校验码及恢复水印组成，恢复水印为对应映射图像块子块色度平均值。

The watermark information is composed of authentication watermark bit , parity check code and watermark recovery . Watermark recovery is the chroma average value of subblocks of the corresponding mapping image .

信道编码技术是未来宽带无线通信系统中关键技术之一，而LDPC（LowDensityParityCheck，低密度奇偶校验）码具有逼近Shannon限的性能，是信道编码研究领域的一个热点。

Channel code is one of the key technologies in the future wide-band wireless communication system . As a class of error-correcting codes that has performance approaching Shannon limit , low-density parity-check ( LDPC ) codes is a hot topic in the research area of channel code .