Reed-Solomon error-correcting code decoderwww.nayuki.io/page/reed-solomon-error-correcting-code-decoder#preliminaries 同时还有一个链接,详细地解释了RS编码的计算过程。 Error Correction Codingwww.thonky.com/qr-code-tutorial/error-correction-coding 以下内容是对上面资料内容的一个总结,对所有作者表示感...
Zero latency, low gate count, low power, asynchronous Reed Solomon Code based Erasure code for RAID FEC: The whole operation of encoding and decoding ...
本文要介绍的 Reed-Solomon Code 便是处于信道编码阶段。 信道编码之线性分组码 一般来说,待编码的原始数据称为消息(message),编码后的数据称为码字(codeword),信道编码主要分为线性分组码和卷积码(convolutional code),其中线性分组码是指对原始数据划分为固定大小的一个分组,然后对一个分组的数据进行编码或解码的...
and supports continuous output data with no gap between code blocks. The core is parameterizable, allowing designers to control the symbol width and the code block length. This module supports shortened codes and any primitive field polynomial for a given symbol width. The core supports a user-...
Reed-Solomon code RS码纠错能力还不错,比较出名的应用有NASA率先使用的卫星、深空通信,SONY的CD等。需要一点Golais Field的数学知识。由于实现起来有点难度,以前只能照着书本的公式理解,最终写出来代码其实也不长,但重新设计一个也是耗费脑筋。也因为略有困难的原因,开源代码不多,似乎这是FEC/ECC领域内心照不宣的...
Für die in der Einleitung genannten Anwendungen sind BCH- und RS-Codes die wichtigsten Codeklassen, wobei je nach Standpunkt die eine Codeklasse zum Spezialfall der anderen erklärt werden kann (vgl. [44]). Das Verständnis der RS-Codes bildet die Grundlage für ein Verstehen der BCH-Cod...
目前,对于纠双错的RS码的译码电路通常采用两种方法第一种是用Berlekamp-Massey算法(或者Euclidian算法)和Chien搜索算法确定错误的具体位置。这种方法通用性好,但是算法复杂,硬件实现代价高。Chien搜索法需要花费正比于码长的运算时间,译码速度慢。第二种方法是查找表(look-up-table),它是把预先算好的结果存放在只读...
A popular Reed-Solomon code is RS(255,223) with 8-bit symbols. Each codeword contains 255 code word bytes, of which 223 bytes are data and 32 bytes are parity. For this code: n = 255, k = 223, s = 8 2t = 32, t = 16 ...
A generalized Reed-Solomon coding is characterized by the codeword block size n, the information block size k and the generator polynomial g(x), which is a function of beta and r according to the equation: g(x)=(x+ beta )(x+ beta )(x+ beta )(x+ beta )(x+ beta )......
If you need to store or transmit data, and be able to recover it if some is lost, you might want to look at Reed-Solomon coding. Using our code is an easy way to get started. About Brian Beach Brian has been writing software for three decades at HP Labs, Silicon Graphics, Netscape...