摘要
针对超短波通信中的数据传输系统存在随机干扰和突发干扰而使接收端收到误码的问题,提出了RS+卷积级联码的纠错方案,并利用Matlab/Simulink对RS+卷积级联码在加性高斯白噪声信道中的纠错性能进行了仿真分析。结果表明,在低信噪比的情况下,RS+卷积级联码可以使系统误码率降至10-5量级以下(包含10-5),满足超短波通信的要求,是一种高效的纠错码,在工程中具有较高的实用价值。
Aiming at the data transmission in the VHF communication, a project of the RS + Convolutional concatenated code was presented. The performance of the RS + Convolutional concatenated code in AWGN channel was simulated and analyzed based on Matlab/Simulink. The simulation result shows that the RS + Convolutional concatenated code can reduce the bit error rate of the system below 10 ^-5 grade ( including 10 ^-5 )when the SNR is low,. It meets the requirement of the VHF communication. The RS + Convolutional concatenated code is an efficient error correcting code and it is of great value in practice.
出处
《武汉理工大学学报(信息与管理工程版)》
CAS
2008年第2期222-224,共3页
Journal of Wuhan University of Technology:Information & Management Engineering
关键词
RS码
卷积码
级联码
超短波通信
RS code
convolutional code
concatenated code
VHF Communication