基于大气激光通信仿真系统的纠错码性能比较  

Comparison of error-correcting code performance in wireless optical communication simulative systems

作　　者：强世锦[1] 荣健[2] 

机构地区：[1]武汉职业技术学院通信工程系,湖北武汉430074 [2]电子科技大学物理电子学院,四川成都610054

出　　处：《光通信研究》2008年第3期17-18,共2页Study on Optical Communications

基　　金：国家自然科学基金资助项目(60572079)

摘　　要：针对大气激光信道对光信号衰减极大的特性,提出了一种用Simulink构建的Turbo码系统仿真模型,分别与未采用信道编码和采用卷积编码方案的仿真系统进行了误码率(BER)性能对比,结果显示出了Turbo码在实现低误码率的大气激光信息传输中的优越性,为Turbo码在大气激光通信系统中的应用提供了理论基础。In view of the severe attenuation of optical signals in atmospheric channels, we propose a simulation model for Turbo code system constructed by using Simulink and compare its BER performance with those of the simulation systems without using the channel coding scheme and with the convolutional coding scheme. The results demonstrate the superiorities of Turbo code in wireless optical transmissions in terms of low BER and provide a theoretical basis for its applications in these systems.

关 键 词：大气激光通信 TURBO码 卷积码 Matlab仿真 

分 类 号：TN929.12[电子电信—通信与信息系统]