西安电子科技大学学报（自然科学版）2017，Vol.44Issue(2)：33-36,113,5.
闭合表达式的Pareto分布参数估计范围扩展
Closed-form estimator for widening valid estimation range of Pareto parameter
摘要
Abstract
The second order moment of the multi-look Pareto distribution is invalid when the shape parameter is less than 2, so the method of the first two moments cannot estimate the shape parameter less than 2.This paper proposes the method for estimating the shape parameter of multi-look Pareto distribution.The method not only widens the valid range of parameter estimation, but also the expression for estimation is closed.Theoretical analysis and experiment both prove that the method can estimate shape parameter less than 1 compared with the method of moments and that costs are lower in computation than the method of fractional moments.关键词
参数估计/雷达杂波/Pareto分布/形状参数/N次观测Key words
parameter estimation/radar clutter/Pareto distribution/shape parameter/multi-look分类
信息技术与安全科学引用本文复制引用
胡冲,罗丰,张林让,陈帅霖,范一飞..闭合表达式的Pareto分布参数估计范围扩展[J].西安电子科技大学学报（自然科学版）,2017,44(2):33-36,113,5.基金项目
国家重大科学仪器设备开发专项资助项目(2013YQ20060705) （2013YQ20060705）
