基于Turbo码的无线相干光通信系统性能研究  

Research on performance of wireless coherent optical communication system based on Turbo code

作　　者：高磊[1] 余震虹[1] 李科[1] 戴国强[1] 

机构地区：[1]江南大学物联网工程学院,江苏无锡214122

出　　处：《现代电子技术》2012年第23期52-54,58,共4页Modern Electronics Technique

摘　　要：为了提高无线光通信系统的性能,提出并分析了基于Turbo码的无线相干光通信系统。对无线光通信系统中的衰减和噪声进行了分析,并通过Matlab仿真得出了特性曲线。借助系统的误码率,通过对比基于Turbo码的BPSK调制的无线相干光通信系统与BPSK调制的无线非相干光通信系统和未编码无线光通信系统性能,得到无线相干光通信系统借助Turbo编码技术,可以提高系统的抗干扰能力,节省发射光功率,提高了系统性能。In order to improve the performance of wireless optical communication system, a wireless coherent optical com- munication system based on Turbo code is introduced and investigated. Based on analysis of losses and noises of wireless opti- cal communication, the performance of the wireless optical communication system based on Turbo code are presented with Matlab simulation. With the help of the system＇s BER and compared with BPSK modulation wireless incoherent optical com- munication system and uncoded system, the Turbo coded BPSK modulation wireless coherent optical communication system improves the performance of wireless optical link. Application of Turbo code technology to coherent communication system re- sults in the improvement of anti-jamming capability of the system and effective save of emissive optical power.

关 键 词：TURBO码 交织器 无线光通信 相干光 误码率 调制 MATLAB仿真 

分 类 号：TN929.134[电子电信—通信与信息系统]