检错码

最佳（n，2，w）二进制等重检错码的研究

A Study on the Optimum ( n , 2 , w ) Binary Constant Weight Error-detecting Codes

本文研究了最佳（n，2，w）二进制等重检错码的存在性问题。

The paper discusses the existance of optimum ( n , 2 , w ) binary constant weight error-detecting codes .

CRC检错码的软件实现及其在通信中的应用

CRC Error Detection Coding by Software and Its Application to Communication

按字节操作的DVD检错码解码器的实现

Implementation of DVD EDC Decoder Operation Based on Bite

CRC检错码校验方法的快速实现

The Improvement on Speed of Checkout Method for CRC Error Detection Coding

给出了用软件实现CRC检错码的方法。

The method of CRC error detection coding by software is also presented .

（2m，2，m）非线性等重码不是最佳检错码

( 2m , 2 , m ) Nonlinear Constant Weight Codes are not the Optimum Error-Detecting Codes

说明了在异步通信方式下，可采用CRC检错码提高通信系统的差错控制能力。

It is explained that using CRC error detection code in asynchronous mode can enhance the error control ability of communication system .

着重论述了CRC检错码的基本原理以及基于现场总线通信系统中的CRC检错码的具体实现。

The principle of CRC error detection coding and the application of CRC error detection coding to fieldbus communication are introduced in this paper .

本文提出达到Johnson上界的等重码和最佳等重检错码存在的一些充分条件。

This paper presents the sufficient conditions for the constant weight codes which can meet the Johnson 's upper bound and for the existence of the optimal constant weight error-detecting codes .

本文证明了当m＞4时（2m，2，m）非线性等重码不是最佳检错码。

It is proved that ( 2m , 2 , m ) nonlinear constant weight codes with m > 4 are not the optimum error-detecting codes .

在数字系统中，利用检错码或纠错码进行差错控制的方式主要分两部分：自动重传请求ARQ和前向纠错方式FEC。

In digital systems , using error detection code or error correcting codes is divided in mainly of two parts : automatic repeat request ARQ and Forward Error Correction FEC .

二元（n，2δ，w）非线性等重码在数字通信中被广泛地用作检错码，人们一直研究一般（n，2δ，w）等重码成为检错好码的充要条件。

Binary nonlinear codes ( n , 2 δ, w ) are widely used as error detecting codes in digital communication and as good error-detecting codes , the sufficient and necessary condition of ( n , 2 δ, w ) codes has been studied by many people .

最佳非线性等重检错码的存在性问题

The Existence on the Optimal Nonlinear Error-Detecting Constant Weight Codes

非线性等重码是一类非常重要的检错码，它的检错性能得到了普遍关注。

The binary nonlinear constant codes are a class of important codes for error detecting .

检错码的对偶定理

A Dual Theorem on Error Detection Codes

为此，人们研究了很多种提高监测系统通信可靠性的方法，比如，增加带宽、加大功率、降低噪声、使用数据检错码或数据纠错码等。

Therefore , many ways to improve the reliability of the monitoring system have been studied , such as enlarging the bandwidth , enhancing the power , reducing the noise , or using the error detecting code and error correcting code , etc.

非线性等重检错好码的存在性的进一步分析

Further Analysis of the existence on Nonlinear Constant Weight and Good Error-detecting codes

CRC是一种在数据通信和数据压缩中广泛采用的检错校验的循环码。试论键槽对称度误差的正确检测

Cyclical Redundancy Checking ( CRC ) is a common technology in data communication and data compressing fields for error detection . Correct checking of symmetric error of key way

本文首先对单向、随机错并存时的错误模式进行较深入分析，按对各种错误模式的纠/检错能力定义纠/检错码。对D。

The patterns of random and unidirectional errors are first analyzed in this paper Then , according to their protection capabilities against various error patterns , the random and unidirectional error-correcting / detecting codes are defined .

在只检错时，证明了纠正两个错误扩展BCH码是最佳检错码；m大于4的非线性等重码（2m，2，m）不是最佳码。

It is proven that the extended double-error-correcting BCH codes are proper for pure error-detection , and the ( 2m . 2 . m ) nonlinear constant weight code for m4 are not .