一种改进的复合K分布杂波仿真方法  

Ameliorated Simulation Method of Compound K-distributed Clutter

作　　者：姜斌[1] 王宏强[1] 任双桥[1] 郭桂蓉[1] 

机构地区：[1]国防科技大学四院空间信息技术研究所,湖南长沙410073

出　　处：《系统仿真学报》2006年第5期1101-1104,共4页Journal of System Simulation

基　　金：国防预研项目(41303040203);国家杰出青年项目60025102)

摘　　要：针对目前复合K分布杂波仿真中没有考虑线性滤波器物理可实现性的问题,首先深入研究了该杂波模型的统计特性及其ZMNL仿真方法;在此基础上,引入最小相位特性与复倒谱技术,提出了一种物理可实现的滤波器产生方法,同时详细阐述了物理可实现复合K分布杂波随机序列产生的流程;最后,进行了仿真实验,仿真结果证明了该方法的准确性和有效性。该方法产生的杂波可用于雷达信号模拟、雷达图像分析及雷达最优信号处理器的设计。To solve the question which is not considered for the realizable linear filter of physics in the simulation of compound K-distributed clutter at present, the statistics characteristic of the clutter model and simulation method of ZMNL （Zero Memory Nonlinearity） were firstly studied. Then adopting minimum phase feature and complex cepstrum technology, the technique of the realizable filter of physics was proposed based on these. Furthermore, the method of generation of random K-distributed sequences was put forward profoundly. Finally, the simulation was processed and the results prove both validity and veracity of the method. The clutter generated by this method can be used in the simulation of radar signal, analysis of radar image and optimization of radar signal processor.

关 键 词：复合K分布杂波 ZMNL 复倒谱 物理可实现线性滤波器 仿具 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]