基于ZMNL的相关广义复合分布宽带雷达杂波仿真  

Simulation of The Correlated Generalized Compound distribution Wide Band Radar Clutter Using ZMNL Method

作　　者：谢灵巧[1] 陈祝明[1] 江朝抒[1] 周云[1] 

机构地区：[1]电子科技大学电子工程学院,四川成都610054

出　　处：《信号处理》2009年第9期1463-1468,共6页Journal of Signal Processing

基　　金：国防预研项目(9140A07030207DZ0203)

摘　　要：在宽带雷达体制下,雷达杂波的幅度统计模型更适合用广义复合分布(GC_pdf)模型描述。本文推导了广义复合模型的表达式;在此基础上利用相关广义复合序列的高阶自相关系数,推导了相关高斯序列与相关广义复合分布序列相关系数间的非线性关系;从而提出了基于这种非线性关系变化的零记忆非线性变换法(ZMNL)仿真广义复合分布杂波的算法。最后还利用此算法仿真了几种常见特殊广义复合分布(K分布,Weibul分布,广义K分布)序列以及一般广义复合分布序列,仿真结果验证了该算法的有效性和准确性。The generalized compound probability density function （GC_pdf） applied to characterize the Wide Band Radar clutter amplitude statistical model is more appropriate in Wide Band Radar. This paper deduces the GC model＇ s pdf and the nonlinear connection between the correlated Gauss sequences and the correlated GC distribution sequences＇ correlative coefficient based on the high-level autocorrelation coefficient of the correlated GC distribution sequences. Accordingly, based on the nonlinear connection, this paper presents a method for simulating the GC distribution clutter using ZMNL method. The method＇ s practicability and veracity are proved by generating kinds of special GC distribution （K distribution, Weibull distribution, GK distribution） sequences and general GC distribution sequences using this model.

关 键 词：宽带雷达 雷达杂波仿真 广义复合分布 ZMNL 

分 类 号：TN955[电子电信—信号与信息处理]