【摘要】 合成孔径雷达SAR(Synthetic Aperture Radar)技术是一种主动的对地观测技术,已在国内外减灾领域得到了广泛的应用。环境减灾HJ-1CSAR卫星是我国第一颗民用SAR卫星,也是我国第一颗用于减灾救灾领域的SAR卫星,已于2012年11月19日发射成功。在HJ-1CSAR卫星发射前,从SAR技术特点出发,分别分析了单极化、多极化、干涉、极化干涉SAR数据在灾害预警监测评估领域的应用现状及潜力。对于推动利用SAR技术进行灾害监测预警业务体系向更深层面发展,推动高级空间技术在减灾领域的应用,以及推动我国在灾害监测预警领域的SAR卫星星座的建设具有重要意义。更多还原

【Abstract】 Synthetic Aperture Radar(SAR)is an active earth observation technology,has been widely used in disaster reduction field at home and abroad."Environment and disaster monitoring and prediction small satellite constellation" of HJ-1C is the first civil SAR satellite,and is the first satellite used for disaster reduction and relief field in china,has been lauched successfully on November 19,2012.Before launching,from the SAR technical characteristics,this paper analyzes the application situation and potentiality of SAR data divided into single-polarization SAR,multi-polarization SAR,Interferometric SAR and Polarimetric SAR Interferometry.This study has important significance in promoting deeper development of disaster monitoring and warning business system by SAR technique,driving application of high space technique and pushing forward SAR satellite constellation construction of disaster monitoring and warning field in China.更多还原