星地光通信交织RS码设计及性能研究  

Design of Interleaved R-S Code of Satellite-to-ground Optical Communication System

作　　者：姜晓峰[1] 赵尚弘[1] 李勇军[1] 盖美庆[1] 王翔[1] 

机构地区：[1]空军工程大学电讯工程学院,西安710077

出　　处：《半导体光电》2011年第3期401-404,共4页Semiconductor Optoelectronics

基　　金：国家"863"计划项目(2007AA01Z294)

摘　　要：复杂多变的大气环境极易造成星地光链路的突发错误,交织RS码超强的抗突发能力能有效地纠正信息序列中的突发错误。文章综合考虑时延、交织深度、编码效率三个参数,对交织RS码进行优化设计,计算了固定交织深度下的最佳编码效率,仿真表明:交织RS码在衰落信道中能明显地提高通信系统的性能,当编码效率为1/2时,具有最大的抗突发能力。Complex and volatile atmospheric environment usually results in large burst-errors of satellite-to-ground optical link,but the powerful interleaved R-S code can correct the burst-errors in the message sequence effectively.In this paper,by optimizing the interleaved R-S code and considering three parameters of delay,interleaving length and coding efficiency comprehensively,the optimum coding efficiency at the fixed interleaving length is calculated.The simulation results show that the interleaved R-S code can obviously improve the performance of communication system in the fading channel,and the most powerful capability of correcting burst-errors is obtained at the coding efficiency of 1/2.

关 键 词：星地光通信 突发错误 比特交织 RS码 

分 类 号：TN929.13[电子电信—通信与信息系统]