一种新的抑制窄带干扰的时域均衡算法

应用科学学报 ›› 2006, Vol. 24 ›› Issue (6): 560-564.

一种新的抑制窄带干扰的时域均衡算法

张玉恒, 吴启晖, 王金龙

解放军理工大学通信工程学院, 江苏南京 210007

收稿日期:2005-08-29 修回日期:2005-12-21 出版日期:2006-11-30 发布日期:2006-11-30
作者简介:张玉恒,博士生,研究方向:短波通信、扩频干扰抑制、通信信号处理,E-mail:zyhsea@163.com;王金龙,教授,博导,研究方向:短波通信、OFDM、MIMO系统通信对抗,E-mail:wje543@sina.com

A Novel Time-Domain Equalization Algorithm for Narrow Band Interference Suppression

ZHANG Yu-heng, WU Qi-hui, WANG Jin-long

Institute of Communications Engineering, PLA University of Science and Technology, Nanjing 210007, China

Received:2005-08-29 Revised:2005-12-21 Online:2006-11-30 Published:2006-11-30

摘要/Abstract

摘要： 通过对维纳滤波中最速下降法的分析,提出了一种新的AJ(anti-jamming) LMS时域均衡算法.该算法基于估计出的信道参数,对均衡器的权系数进行自适应调整.理论分析和仿真结果表明,虽然AJLMS算法的计算量比LMS算法有所增加,但它的抗窄带干扰性能得到了明显提高.

关键词: 时域均衡, 窄带干扰抑制, LMS算法

Abstract: From the steepest descent analysis of Wiener filtering, a new algorithm termed AJ (anti-jamming) LMS equalization is proposed, which adaptively adjusts the weight factors of the equalizer based on the estimated channel. Results of analysis and simulation show that performance of AJLMS is better than the LMS algorithm in terms of narrow band interference (NBI) suppression although computation complexity is increased to some extent.

Key words: NBI suppression, time-domain equalization, LMS algorithm

中图分类号:

TN911.4

张玉恒, 吴启晖, 王金龙. 一种新的抑制窄带干扰的时域均衡算法[J]. 应用科学学报, 2006, 24(6): 560-564.

ZHANG Yu-heng, WU Qi-hui, WANG Jin-long. A Novel Time-Domain Equalization Algorithm for Narrow Band Interference Suppression[J]. Journal of Applied Sciences, 2006, 24(6): 560-564.