基于盒差分滤波器的脉冲检测算法  

Pulse detection algorithm based on difference of boxes filter

作　　者：李程[1,2] 王伟[1,2] 王雪松[1,2] 

机构地区：[1]国防科学技术大学电子信息系统复杂电磁环境效应国家重点实验室,湖南长沙410073 [2]国防科学技术大学电子科学与工程学院,湖南长沙410073

出　　处：《系统工程与电子技术》2013年第8期1615-1619,共5页Systems Engineering and Electronics

基　　金：国家自然科学基金(60875019)资助课题

摘　　要：为了估计脉冲的到达时间和脉冲宽度,将图像处理领域的边缘检测思想应用于电子对抗中的脉冲信号检测问题,提出了一种基于盒差分(difference of boxes,DOB)滤波器的脉冲边沿检测算法。推导并给出了算法的基本流程,仿真分析了不同滤波器阶数和不同信噪比条件下的脉冲检测结果。仿真结果表明,该算法的检测性能优于能量检测算法,但检测采用的DOB滤波器大小不能大于脉内信号的采样点数。In order to estimate the time of arrival and pulse width, the idea of edge detection in image processing is applied to the pulse detection problem in electronic countermeasure, and a pulse detection algorithm based on difference of boxes （DOB） filter is presented. The algorithm flow is offered after derivation, and the detection results with different filter orders and under different signal-to-noise ratios are analyzed by simulation. The result shows that the algorithm offers a better detection performance than the energy detection method, while the filter size should not be larger than the length of samples in the pulse.

关 键 词：电子对抗 脉冲检测 盒差分滤波器 到达时间估计 脉冲宽度估计 

分 类 号：TN97[电子电信—信号与信息处理]