Rician衰落信道下的编码非相干混合DS-SFH扩频通信系统性能分析

PERFORMANCE ANALYSIS OF CODED NONCOHERENT HYBRID DS-SFH SPREAD SPECTRUM COMMUNICATION SYSTEMS WITH RICIAN FADING

本文针对部分带宽噪声干扰、多址干扰、Rician信道衰落和高斯白噪声等多种干扰存在环境下 ,MFSK调制异步非相干混合 DS- SFH扩频通信系统性能研究的基础上 ,对使用 RS( N,K)码 ,双 k卷积码和级联码 ( RS( N,K)外码 ,双 k卷积内码 )等几种不同前向纠错信道编码的 MFSK调制异步非相干混合 DS- SFH扩频通信系统性能进行了分析、计算和比较。同时分析和讨论了对部分带宽噪声干扰、Rician信道衰落等干扰对系统性能的影响 ,得到一些重要结果。

In this paper is analyzed the performance of MFSK modulated asynchronous noncoherent hybrid DS-SFH spread spectrum communication systems under partial band interference (PBN) , multiple access interference, Rician fading and AWGN. The performance of MFSK modulated asynchronous noncoherent hybrid DS-SFH spread spectrum communication systems that employs forward-error-control coding, is also analyzed and compared. The coding schemes analyzed to include: Reed-Solomon codes (error-only decoding), dual-k convolution codes, and concatenated codes (Reed-Solomon outer codes with dual-k convolution inner codes). At the same time, the effects of PBN and Rician fading on the hybrid spread spectrum system performance are discussed and analyzed.