扩频通信中组合自适应抗干扰技术  

A Combined Adaptive Filter Techniques for Interference Suppression in Spread Spectrum Systems

作　　者：唐瑜[1] 严梅[1] 洪福明[1] 

机构地区：[1]电子科技大学通信与信息工程学院

出　　处：《电子科技大学学报》1998年第2期123-128,共6页Journal of University of Electronic Science and Technology of China

基　　金：国防科工委预研基金

摘　　要：研究了自适应滤波技术在扩频通信中的窄带干扰抑制作用，针对当前自适应滤波器在实际中存在数值稳健性问题作了深入详细的分析，提出了一种新的组合滤波器模型的解决方法，具体以中心抽头的自适应横式滤波器为基本滤波器结构，在此基础上构造出新的组合滤波器结构，并在理论与实践上对两者作了分析对比。In this paper,the application of adaptive technique for narrow band suppression in spread spectrum (SS) communication is discussed and its numerical robustness is analyzed.In order to increase the converge rate and improve the output signal noise ratio,a combined filter mode is proposed and a new combinde adaptive filter is constructed based on a interpolator filter.Finally,the interference suppression ability of both basic adaptive filters and its combined counterparts is compared in theory and in practice.

关 键 词：自适应滤波器 直接序列扩频 扩频通信 

分 类 号：TN914.4[电子电信—通信与信息系统]