基于复数陷波器的窄带干扰抑制研究  

Narrowband Interference Suppression Based on Complex Adaptive Notch Filter

作　　者：解朦朦 王勇超[1] 

机构地区：[1]西安电子科技大学综合业务网国家重点实验室,陕西西安710071

出　　处：《电子科技》2013年第11期99-103,共5页Electronic Science and Technology

基　　金：国家科技重大专项基金资助项目(2011ZX03004-001-01)

摘　　要：研究了直接序列扩频通信系统中幅值相差较大的窄带干扰抑制问题,以一阶复数自适应陷波器为陷波单元,介绍了一种级联结构的陷波器,给出了系数迭代的自适应算法和理论分析。仿真实验表明,该陷波器能有效消除多个窄带干扰,迭代算法具有良好的收敛性能。This paper researches the different amplitude narrowband interference suppression in direct sequence spread spectrum communication system and introduces a cascade structure of the notch filter with one-order complex adaptive notch filter as notch cell, and makes a theoretical analysis of the adaptive algorithm for coefficient iteration. Simulation results show that the notch filter can effectively eliminate multiple narrowband interferences, and the cor- responding iterative algorithm has good convergence performance.

关 键 词：复数自适应陷波器 窄带干扰 迭代算法 

分 类 号：TN911.4[电子电信—通信与信息系统]