一种新的相关相干k分布杂波建模与仿真方法  

A New Method for Modeling and Simulation of Correlated Coherent K-distributed Clutter

作　　者：杨俊岭[1] 魏星[1] 黄晓斌[1] 万建伟[1] 

机构地区：[1]国防科技大学电子科学与工程学院,长沙410073

出　　处：《信号处理》2007年第2期268-272,共5页Journal of Signal Processing

基　　金：国防预研基金41321090202

摘　　要：根据K分布杂波的两个正交分量可由两列相互独立的高斯矢量的加权乘积和,精确或近似构成的原理,本文提出了一种新的相关相干K分布杂波建模与仿真方法。相比经典的零记忆非线性变换(ZMNL)和球不变随机过程(SIRP)法,该方法可以仿真自相关函数(acf)为任意复数的杂波序列,同时由于不需要进行非线性变换,运算速度得到显著改善。仿真结果证明了这种方法的有效性。With the principle of each quadrature component of K-distributed clutter can be modeled, exactly or approximately, by a weighted sum of products of two independent Gaussian variables, a new method for modeling and simulation of correlated coherent K- distributed clutter is presented. Compared with ZMNL and SIRP, this method can generate correlated coherent clutter with arbitrary complex aef. At the same time, it doesn＇ t need resolving non-liner equation, so, the speed of simulation is improved markedly. The resuhs prove the validity of this scheme.

关 键 词：杂波建模 K分布 相关相干 

分 类 号：TN958.92[电子电信—信号与信息处理]