BICM-ID卫星系统的DFE均衡及其改进
DFE equalization and its improvements in BICM-ID satellite system
崔鹏辉 1杨育红 1曾祥峰 1吕静2
作者信息
- 1. 信息工程大学信息工程学院,河南郑州450002
- 2. 61416部队,北京100036
- 折叠
摘要
APSK信号对卫星转发器的非线性极其敏感,解译之前需要进行均衡补偿.传统接收机中的均衡、解调和译码过程是相互独立的,本文将DFE均衡应用到BICM-ID卫星系统中,并对其进行改进,实现了均衡和解译的联合处理,从而获得更好的性能.仿真结果验证了算法的有效性,而且相比传统接收,信噪比改善了1.5dB.
Abstract
APSK is very sensitive with the nonlinearity of satellite transponder,which needs equalization before demodulation and decoding.Conventional receivers execute equalization,demodulation and decoding independently.This paper applies DFE equalization to BICM-ID satellite system and proposes some improvements,which combine equalization,demodulation and decoding,and as a result get better performance.Simulation results show that the algorithm are effective and the Eb/N0 improves 1.5dB.
关键词
BICM-ID/APSK/DFE均衡/非线性Key words
BICM-ID/APSK/DFE equalization/nonlinearity引用本文复制引用
出版年
2013
NETL
NSTL
万方数据