Statistical assessment of H/A target decomposition theorems in radar polarimetry

查看全文 作　　者：LIU [1,2]Tao;HUANG [1]GaoMing;WANG [2]XueSong;XIAO [2]ShunPing

机构地区：[1]School of Electronic Engineering, Naval University of Engineering, Wuhan 430033, China;[2]School of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China

出　　处：《Science China(Information Sciences)》索引2010年第53卷第2期,共12页

基　　金：supported by the National Natural Science Foundation of China (Grant No. 60901069);Natural Science Foundation of Habei Province of China (Grant No. 2008CDB324) 摘　　要：Target decomposition (TD) theorems have been widely applied in radar polarimetry, serving as the bridge between radar measurements and the physical parameters of a scatterer. The H/A target decomposition is one of the most suitable tools for performing data interpretation in the study and characterization of natural scatters. In this paper, the statistics of the parameters of eigenvalue, eigenvector and H/A have been analyzed via a novel method, and the probability density functions (PDF) have been obtained. It is pointed out that all these parameters can be seen as asymptotically nonbiased with respect to the number of looks. In order to reduce the biases for a small number of looks, a novel estimator for the parameters has been proposed. We give the basic theorems for accurate estimation of parameters. 关键词：分解定理雷达目标统计评估偏振概率密度函数目标分解参数估计 PDF格式

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Statistical assessment of H/A target decomposition theorems in radar polarimetry

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