摘要
引入了RS码作为大气光通信的信道编码,讨论了在高斯信道和弱湍流信道下,基于PPM调制和RS编码大气光通信系统的性能,仿真比较了未编码与编码系统的差错性能,仿真结果表明,在相同的差错性能条件下,编码增益提高2～3 dB,在高斯信道中的差错性能优于弱湍流信道。
This paper first introduces RS code as the channel code of ALC. Then, it discusses the error performance through PPM and RS code in Gauss channel and weak turbulence channel, and compares the error performance in the system with RS code with the uncoded system. The simulated results indicate that introduction of RS code can get the code gain of 2 - 3 dB, and error performances under Gauss channel are better than those under weak turbulence channel.
出处
《中国电子科学研究院学报》
2007年第5期523-526,共4页
Journal of China Academy of Electronics and Information Technology
