泊松分布的错误图样对纠错码译码性能的影响  

Error Pattern's Influence on Error Correcting Codes Based on Poisson Distribution

作　　者：郝天铎 王可人[1] 金虎[1] 熊最[1] 

机构地区：[1]电子工程学院,合肥230037

出　　处：《火力与指挥控制》2016年第1期96-100,共5页Fire Control & Command Control

摘　　要：为了在"比特级"层面对纠错码进行更深入的研究,提出了一种服从泊松分布的错误图样分布模型。通过一定的方法产生符合泊松分布特性的二进制序列,并使"1"的数目在整个序列中可控,以此来产生所需的错误图样。同时,以卷积码、RS码以及RS+卷积级联码为研究对象,以随机错误为参照,分别分析了该错误图样下三者的译码性能。仿真结果表明,基于泊松分布的错误图样对卷积码和级联码的影响要大于随机错误图样,而随机错误图样对RS码的影响更大。In order to get further studies of the error correcting codes on ＂bits＂ level,a model about error pattern distribution which subject to Poisson distribution is proposed. The error pattern is generated by producing binary sequence according to the feature of the Poisson distribution. Also the number of ＂1＂ in the sequence could be controlde. The codes include convolutional code, RS code and concatenated RS-convolutional Codes. Then the d Poisson distribution when the random error is ecoding performance of the code is investigated under regarded as reference. Results show that the Error Pattern＇s Influence on convolutional code and concatenated codes which based on Poisson distribution is more ~reater than the random error,but RS code is more sensitive to the random error.

关 键 词：泊松分布 错误图样 卷积码 RS码 级联码 

分 类 号：TN911[电子电信—通信与信息系统]