基于网格聚类的雷达信号预分选  

A radar signal pre-sorting algorithm based on grid clustering

作　　者：邱磊[1] 杨承志[1] 陈昊[1] 占望宝[2] 

机构地区：[1]空军航空大学 [2]中国人民解放军94829部队

出　　处：《航天电子对抗》2012年第3期51-54,共4页Aerospace Electronic Warfare

摘　　要：针对现有网格聚类算法需要人为确定网格划分、边界处理精度低的问题,提出了基于固定网格划分和动态网格划分的雷达信号预分选算法。基于固定的网格划分算法对输入信号脉冲顺序不敏感,根据网格数据压缩率自适应确定网格划分和密度阈值。基于移动技术的动态网格聚类算法能够识别任意形状和大小的聚类。仿真实验表明,这两种方法能有效适用于雷达信号分选,且能很好地识别出孤立点和噪声。The conventional gird clustering algorithm has some problems such as needing parameters input and low clustering precision. So a signal sorting algorithm based on fixed grid partition and a signal sorting algorithm based on dynamic grid partition are proposed. The former has a low sensitivity to the order of radar signal input. It partitions the grid and gets density threshold automatically by grid data compression ratio. Dynamic grid clustering and shifting technique can discover arbitrary shapes and size of clusters. Both the algorithms are verified to be effective and better robustness to noise by simulations.

关 键 词：雷达信号分选 预分选 网格聚类 动态网格 移动网格 

分 类 号：TN957.51[电子电信—信号与信息处理]