一种新型的扩频通信自适应窄带干扰抑制技术  

A new adaptive narrow-band interference suppression technique for spread spectrum communication

作　　者：赵彦惠[1] 刘莹[1] 

机构地区：[1]中国电子科技集团公司第54研究所,河北石家庄050081

出　　处：《无线电通信技术》2006年第3期60-61,共2页Radio Communications Technology

摘　　要：提出了1种基于IIR带阻滤波器的窄带干扰抑制方式,不但能够对窄带干扰进行精确的频率跟踪,而且能够根据信号电平自适应设置干扰的检测门限,并通过选择最佳的滤波器参数滤除干扰,从而可以将干扰造成的性能损失减小到最低程度,计算机仿真证实了本方法具有良好的窄带干扰抑制效果和较低的实现复杂度。In this paper, we suggest a narrow-band interference suppression technique based on IIR band-stop filter. Using this technique can precisely perform the precise frequency tracking for narrow-band interference, set detection interference threshold adaptively according to signal levels and filter the interference signals by selecting optimal filter parameters, so it can minimize the performance loss due to interference. The results of computer simulations show that this technique can provide good narrow-band interference suppression performance with rather low complexity.

关 键 词：扩频通信 窄带干扰抑制 带阻滤波自适应干扰门限 

分 类 号：TN914[电子电信—通信与信息系统]