首页 | 本学科首页   官方微博 | 高级检索  
     检索      

直接序列扩频通信中的抗窄带干扰非线性自适应滤波器
引用本文:王海江,杨玲,谢明元,何建新,梁继业.直接序列扩频通信中的抗窄带干扰非线性自适应滤波器[J].成都信息工程学院学报,2007,22(3):343-346.
作者姓名:王海江  杨玲  谢明元  何建新  梁继业
作者单位:1. 成都信息工程学院,四川成都,610225
2. 中科院上海微系统与信息技术研究所,上海,200050
基金项目:成都信息工程学院校科研和教改项目
摘    要:分析用于直接序列扩频通信中窄带干扰抑制的几种非线性自适应滤波器,提出了一种称为非线性LTJ(Lattice and Transversal Joint)滤波器的新型非线性抗干扰滤波器.对比几种滤波器的信噪比改善性能、收敛速度以及计算复杂度,发现非线性LTJ滤波器具有收敛速度快的优点,并且在干扰强度较大时,其抗干扰性能要比非线性Lattice滤波器好.

关 键 词:直接序列扩频通信  窄带干扰  非线性自适应滤波器  直接序列扩频通信  抗窄带干扰  非线性  自适应滤波器  spread  spectrum  communications  interference  suppression  filters  抗干扰性能  干扰强度  发现  计算复杂度  收敛速度  改善性能  信噪比  抗干扰滤波器  Lattice  Transversal  Joint  窄带干扰抑制  分析
文章编号:1671-1742(2007)03-0343-04
收稿时间:2006-09-26
修稿时间:2006-09-262006-10-23

Nonlinear self-adaptable filters for narrow-band interference suppression in DS spread spectrum communications
WANG Hai-jiang,YANG Ling,XIE Ming-yuan,HE Jian-xin,LIANG Ji-ye.Nonlinear self-adaptable filters for narrow-band interference suppression in DS spread spectrum communications[J].Journal of Chengdu University of Information Technology,2007,22(3):343-346.
Authors:WANG Hai-jiang  YANG Ling  XIE Ming-yuan  HE Jian-xin  LIANG Ji-ye
Abstract:Several kinds of nonlinear self-adaptable filters for the suppression of the narrow-band interference in the DS(direct sequence) spread spectrum communications are discussed.Inspired by these filters a new kind of nonlinear filter called nonlinear LTJ filter is proposed.Their SNR improvement and convergence speed in the narrow-band interference suppression in the DS-SS communication and their computation complexity are also discussed.The LTJ nonlinear filter has the advantage of fast convergence and in the circumstance of strong interference it suppresses the interference better than the lattice filter.
Keywords:DS spread spectrum communication  narrow-band interference  nonlinear adaptable filter
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号