简述极化SAR定标处理技术研究进展  

The Progress on Research of Polarimetric SAR Calibration

作　　者：陶利[1] 曲圣杰[2] 陈曦[1] 

机构地区：[1]中国电子科技集团公司第三十八研究所,安徽合肥230088 [2]中国科学院合肥物质科学研究院,安徽合肥230031

出　　处：《遥感技术与应用》2016年第3期459-467,共9页Remote Sensing Technology and Application

基　　金：国家863计划项目(2011AA120404)

摘　　要：极化定标是极化SAR数据用于图像解译和定量参数反演的关键步骤。综述了国内外极化SAR定标技术及应用研究的主要成果,着重介绍极化SAR定标技术发展以来取得的多种关键算法进展,系统梳理包括点目标定标算法、分布目标定标算法、法拉第旋转校正算法等技术原理介绍、参数定义估计及技术脉略发展分析,并讨论各技术方法在机载及星载SAR系统定标领域取得的应用发展现状,同时逐步分解该技术领域目前面临的技术难点及算法发展。最后探讨分析极化SAR定标技术发展中的未来需求难点和继续需要解决的问题,为研究人员进一步推动极化SAR定标技术发展提供参考。Polarimetric calibration is a key step for image interpretation and quantitative parameter retrieval of polarimetric SAR data.The polarimetric SAR calibration technique and research applications have been reviewed in this paper,and the progress of several key calibration algorithms developed for SAR calibration has been emphasized.The point targets calibration algorithm,the distributed targets calibration algorithm,and the faraday rotation correction algorithm have been systematically introduced and discussed,including the technology and principle,the parameter definition and estimation,and the technology strategic analysis.The technique application and development in airborne and spaceborne SAR system calibration have been discussed,and also the technical difficulties and algorithm development currently facing have been gradually talked in this field.Finally,the future demand and difficulties that need to be solved in the development of the polarimetric SAR calibration technology have been discussed and analyzed,providing a reference for the researchers to further promote the development of polarimetric SAR calibration.

关 键 词：SAR 极化定标 极化串扰 法拉第旋转效应校正 

分 类 号：TP75[自动化与计算机技术—检测技术与自动化装置]