通信学报2017，Vol.38Issue(1)：117-125,9.DOI:10.11959/j.issn.1000-436x.2017014
卫星高阶调制信号通信下非线性误差修正均衡方法
Nonlinear error modified equalization algorithm in high-order modulation of satellite communication
摘要
Abstract
Aiming at the larger computation and the slower speed of nonlinear error compensation of traditional equaliza-tion algorithms, the fast nonlinear error equalization algorithm with amplitude and phase separation was constructed. It combined the feedback equalization to reduce the computational complexity respectively. In order to eliminate nonlinear interference and memory interference, the algorithm utilized the Volterra model to modify the error and it was adapted to update the feedback equalization parameters. The theoretical analysis and simulation compared proposed algorithm and existing conventional equalization algorithms from the bit error rate, convergence speed and computational complexity. The results show that the computational complexity is only equivalent to 14.1%~24.9% of other algorithms and proposed method can cancel the nonlinear interference quickly.关键词
卫星通信/均衡/非线性误差/反馈Key words
satellite communication/equalization/nonlinear error/feedback分类
信息技术与安全科学引用本文复制引用
唐成凯,张玲玲,廉保旺..卫星高阶调制信号通信下非线性误差修正均衡方法[J].通信学报,2017,38(1):117-125,9.基金项目
国家自然科学青年基金资助项目(No.61501430) The National Natural Science Foundation of China for Youths(No.61501430) （No.61501430）
