基于Logistic混沌序列的错误图样对纠错码的影响  

Error Pattern's Influence on Error Correcting Codes based on Logistic Chaotic Sequence

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,安徽合肥230037

出　　处：《通信技术》2015年第4期397-403,共7页Communications Technology

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Logistic混沌序列的错误图样分布模型。通过将混沌序列映射成二进制序列,并采用一定的方法使序列中"1"的数目可控,以此来生成错误图样。将卷积码、RS码以及RS+卷积级联码作为研究对象,以随机错误为参照,分别研究了该错误图样下三者的译码性能。仿真结果表明,基于Logistic混沌序列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 further study the error correcting model subject to logistic chaotic sequence is proposed. chaotic sequence into binary sequence and controlling codes on ＂bits level＂, an error pattern distribution The error pattern can be generated by mapping the the number of ＂1＂ in the sequence with a certain method. With convolutional code, RS code and concatenated RS-convolutional code as the research ob- jects and random errors as the references, the decoding performance of these three codes is investigated un- der the error pattern. Results show that the influence of logistic chaotic sequence-based error pattern on convolutional code and concatenated codes is much greater than that of random error pattern,while RS code is more sensitive to the random error pattern.

关 键 词：LOGISTIC混沌序列 错误图样 卷积码 RS码 级联码 

分 类 号：TN911.22[电子电信—通信与信息系统]