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- 2017
宽幅InSAR大地测量学与大尺度形变监测方法
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Abstract:
随着人们对大尺度地形信息与地表环境变化监测需求的提升,以及哨兵1号(Sentinel-1A)、大地2号(ALOS-2)等合成孔径雷达(synthetic aperture radar,SAR)卫星的宽幅模式数据不断获取,宽幅雷达干涉测量(SAR interferometry,InSAR)技术已成为大尺度地形测绘、地球动力学(地震、火山、滑坡等)与人工地物结构健康监测等领域的研究热点。分析了两类宽幅SAR数据,即扫描(ScanningSAR,ScanSAR)模式与逐行扫描地形观测(terrain observation by progressive scans SAR,TOPSAR)模式开展干涉测量的主要限制条件与解决方法,探讨了宽幅InSAR形变监测关键误差估计与改正方法、时间序列分析技术与方位向位移观测技术,并给出2008年矩震级Mw 7.1新疆于田地震同震、震后形变监测应用。随着宽幅SAR数据的不断积累,宽幅InSAR大地测量学有望得到深入发展与应用
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