摘要
The performance analysis and simulation of coding schemes based on the modeling Ka band fixed satellite channel have been presented. The results indicate that concatenated codes with large inner interleaving depth have good performance and high spectrum efficiency. The studies also show that simple block interleaving is very effective in combating the slow frequency nonselective fading of Ka band.
在建立了Ka频段固定卫星通信信道模型的基础上 ,对几种编码方式的性能进行了分析与仿真 .分析及仿真结果表明 :采用足够内交织深度的级联码系统的BER性能及带宽效率均较好 .特别是内码为P TCM的级联码系统 ,在基本不扩展占用频带的情况下 ,还可以获得可观的编码增益 ,因此特别适用于Ka频段的宽带数据传输 .研究结果还表明 :采用内分组交织可以有效地抵抗Ka频段卫星通信信道的非频率选择性慢衰落 .
基金
SponsoredbyMinisterialLevelAdvancedResearchFundation
