雷达杂波建模与仿真  

Modeling and Simulation of Radar Clutter

作　　者：林澄清[1,2] 赵修斌[1] 张光景[2] 

机构地区：[1]空军工程大学电讯工程学院 [2]中国人民解放军94750部队

出　　处：《现代防御技术》2010年第4期116-121,共6页Modern Defence Technology

基　　金：陕西省自然科学基金(SJ08F06)

摘　　要：雷达的环境杂波在雷达环境模拟中具有重要的作用,其特性可以用幅度分布特性和频率分布特性来描述。详细分析并建立了Rayleigh,LogNormal,Weibull分布和K分布等几种概率分布的雷达杂波模型,并对雷达中常见的地杂波、气象杂波、箔条杂波、海杂波等各种雷达杂波类型进行建模仿真,重点是结合ZMNL的方法特点给出具体的实现过程。最后给出了模拟杂波数据的概率密度和功率谱密度曲线,进一步验证了ZMNL杂波建模的有效性和准确性,该方法产生的杂波信号可以用于杂波模拟系统。Radar environmental clutter plays an important role in the simulation of radar environment, statistical characterization of which can be described by the amplitude distribution model and power spectrum model. The model of Rayleigh, LogNormal, Weibull and K distribution radar clutter are analyzed and modeled and some kinds of radar clutter, such as ground, weather, chaff and sea clutter are modeled and simulated. The simulation emphasis is to give the practical process according to the method of ZMNL. lastly, the probability density and power spectrum density of simulated clutter are presented, proving the validity and veracity of clutter modeling by the method of ZMNL. The simulated signal can be used in the simulation of radar clutter systems.

关 键 词：雷达杂波 无记忆非线性变换(ZMNL) 建模仿真 

分 类 号：TN957.51[电子电信—信号与信息处理] TP391.9[电子电信—信息与通信工程]