脉冲噪声环境下编码信道抗噪声性能研究  

Research on Anti-noise Properties of Coding Channel in the Impulse Noise Environment

作　　者：姚娟[1] 万瑶[1] 李丽芳[1] 张谦[1] 

机构地区：[1]中北大学信息与通信工程学院,山西太原030051

出　　处：《山西电子技术》2011年第4期47-48,64,共3页Shanxi Electronic Technology

基　　金：山西省研究生优秀创新基金项目(20081017)

摘　　要：针对现实中多数信道为脉冲噪声环境的特点,以α稳定分布和信道编码理论为基础,并以α稳定分布噪声为脉冲噪声模型,运用M atlab软件研究了脉冲噪声环境下编码信道的抗噪声性能。研究结果表明,SNR较大时脉冲噪声对编码信道所造成的误码影响远大于高斯噪声所造成的误码影响。Complied with the reality that the majority of the channels are in the impulse noise environment, the anti-noise performance of the coding channel based on the theory of a-stable distribution and coding channel is researched here by Matlab. The noises which follow the or-stable distribution are used as the impulse noises in this paper. Studies show that, the alpha noises make much bigger influence than the Gauss noises to the coding channel when the SNR is bigger.

关 键 词：Α稳定分布 编码信道 MATLAB 抗噪声性能 

分 类 号：TP911[自动化与计算机技术]