Comparision of Methods for Polarimetric SAR Tomography with Small Number of Baselines in Forested Areas

作     者：LIANG Lei ZHOU Chenghu LI Xinwu GAO Xizhang WU Wenjin LIANG Lei;ZHOU Chenghu;LI Xinwu;GAO Xizhang;WU Wenjin

作者机构：State Key Laboratory of Resources and Environmental Information System Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Key Laboratory of Digital Earth Sciences Institute of Remote Sensing and Digital Earth (RADI) Chinese Academy of Sciences 

出 版 物：《Chinese Journal of Electronics》 (电子学报(英文))

年 卷 期：2019年第28卷第5期

页      面：1073-1079页

核心收录：

学科分类：080904[工学-电磁场与微波技术] 0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 09[农学] 0903[农学-农业资源与环境] 0701[理学-数学] 

基　　金：supported by the National Natural Science Foundation of China(No.41571360) China Postdoctoral Science Foundation(No.2016M601110) the Young Scientists Fund of National Natural Science Foundation of China(No.41601361) 

主　　题：Synthetic aperture radar(SAR) Polarimetric SAR SAR tomography Compressive sensing 

摘      要：Synthetic aperture radar Tomography(TomoSAR) provides scene reflectivity estimation of vegetation along elevation coordinates. However, the more multi-baselines acquisition, the longer the time span of acquisition, which will result in serious temporal decorrelation in forested area. In this way, we expect to use as smaller number of baselines as possible to obtain high estimation accuracy in elevation direction. We thus investigate the performance of Polarimetric SAR tomography(Pol-TomoSAR) with small number of baselines in forested areas. The results show that compressive sensingbased Pol-TomoSAR has higher estimation accuracy in elevation direction than conventional Pol-TomoSAR with small number of baselines.