基于ZMNL和SIRP的相关非高斯杂波产生比较  

The Comparison of Correlated Non-Gaussian Radar Clutter Simulation Based on ZMNL and SIRP Method

作　　者：李青华[1] 邓成[1] 姚云萍[2] 

机构地区：[1]电子科技大学电子工程学院,成都611731 [2]电子科技大学电子科学技术研究院,成都611731

出　　处：《电子信息对抗技术》2011年第4期54-59,共6页Electronic Information Warfare Technology

摘　　要：针对雷达杂波模拟问题,介绍了零记忆非线性(ZMNL)法和球不变随机过程(SIRP)法的基本原理,仿真了5种相关非高斯杂波——Log-Normal、K、拉普拉斯、Weibull和广义Gamma分布。结果中模拟数据的概率密度函数与理论分布,Welch法估计谱与理论谱都能够较好地吻合,证明了两种算法的有效性。同时与分布参数估计相结合,比较分析了ZMNL法和SIRP法的适用情况和优缺点,并为两者的选择提出了合理的建议。Focusing on problems of simulating radar clutter,the basic principles of Zero Memory Nonlinearity（ZMNL） method and Spherically Invariant Random Process（SIRP） method are introduced.Five correlated non-Gaussian clutter——Log-Normal,K,Laplace,Weibull and generalized Gamma distributions are simulated.In the results,the probability density function of simulation data and the estimated spectrum using Welch method are in good agreement with theoretical distribution and spectrum respectively,which verify the validity of the two algorithms.Combined with distribution parameter estimation,applicable circumstances,advantages and disadvantages of ZMNL method and SIRP method are compared and analyzed.Reasonable suggestions are also made on how to choose the two methods.

关 键 词：零记忆非线性 球不变随机过程 相关非高斯 杂波模拟 

分 类 号：TN955[电子电信—信号与信息处理]