一种海面后向散射特性实时仿真的统计模型  

Statistical Model for Real-time Simulation of Ocean Backscattering

作　　者：李晓飞[1] 许小剑[1] 

机构地区：[1]北京航空航天大学电子信息工程学院,北京100083

出　　处：《系统仿真学报》2009年第8期2185-2189,共5页Journal of System Simulation

摘　　要：提出了一种用于海面后向散射特性实时仿真的三参数模型,导出了分别符合Weibull分布、Log-Normal分布和K-分布等三种统计模型的海杂波生成函数,并讨论了各函数中参数的拟合优化方法。该模型的输出特性既满足实测海面后向散射系数数据的均值和标准偏差,同时又反映出给定的概率密度统计特性,可用于各种仿真系统中的海杂波实时仿真。A three-parameter model for real-time simulation of the ocean backscattering coefficient was proposed. The generation functions for Weibull, Log-Normal and K-distribution sea clutter were developed. Parameter fitting and optimization were studied The output characteristics of the model not only match the statistical mean and standard deviation of the measured data, but also represent specified statistical probability density characteristics. This model can be used for real-time sea clutter simulation in various systems.

关 键 词：海杂波 统计模型 仿真 WEIBULL分布 Log—Normal分布 K-分布 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]