基于中值滤波的冲激引信毛刺脉冲消除方法  

Impulse Interference Reduction Based on Median Filter for Impulse Radar Fuze

作　　者：宋宝军[1] 

机构地区：[1]空军工程大学防空反导学院,陕西西安710051

出　　处：《探测与控制学报》2014年第3期52-55,共4页Journal of Detection & Control

摘　　要：针对现有冲激引信干扰处理方法无法有效消除具有幅值大、时间短、出现随机、与回波信号类似等特点的毛刺脉冲干扰的问题,提出基于改进中值滤波算法的冲激引信毛刺脉冲干扰消除方法。该方法可根据引信速度自适应调整滤波窗口大小并选取合理的滤波权值,使得冲激引信毛刺脉冲干扰被有效消除。仿真表明,信号的改善因子D均在3.89dB以上,可以有效提高回波信号质量。Focusing on the problem that the burr impulse has characteristics of large amplitude ,short duration , random occurrence and similar with the valuable echo signal,the existing interference processing method of im-pulse radar fuze could not eliminate the interference effectively.This article presented the method of the burr pulse interference’s elimination by the introduced median filter.This method could eliminate the burr pulse in-terference effectively when selecting the reasonable filter window and right size of the weights.Through the practice,it is demonstrated that the improvement factor D can be improved to 3.89dB,the quality of echo signal has been improved effectively.

关 键 词：冲激引信 毛刺脉冲干扰 中值滤波 改善因子 

分 类 号：TJ434.1[兵器科学与技术—火炮、自动武器与弹药工程]