基于D-InSAR技术的某震区地震三维形变场反演
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摘要
雷达差分干涉测量技术(Different InSAR,D-InSAR)作为的一项新的发展技术,监测精度极高,是目前地表形变监测最有效的方法之一。然而,D-InSAR技术只能获取地面沿雷达视线方向的形变量(Line of Slight,LOS),因此我们需结合其它技术进行联合解算,来求解三维形变量以获取真实地表的形变情况。本研究以某震区为研究区,利用地震前后的哨兵一号数据,基于D-InSAR技术和MAI技术求得地震形变量,按等权分配进行联合求解,最后得到该震区的三维形变信息。
As a new development technology of radar differential interferometry(Different InSAR, D-InSAR), the monitoring precision of surface deformation can reach to centimeter to millimeter, which is one of the most effective methods of surface deformation monitoring. However, D-InSAR technology can only obtain the deformation of the radar line of sight, so we need to combine the other techniques to solve the three-dimensional shape variables in order to obtain the deformation of the real surface. In this study, using a seismic area as the research area, using the data of the sentinel number one before and after the earthquake, based on the D-InSAR and the MAI technology, the seismic shape variables are obtained, and a joint solution is made according to the equal weight distribution. Finally, the three-dimensional deformation information of the earthquake area is obtained.
As a new development technology of radar differential interferometry(Different InSAR, D-InSAR), the monitoring precision of surface deformation can reach to centimeter to millimeter, which is one of the most effective methods of surface deformation monitoring. However, D-InSAR technology can only obtain the deformation of the radar line of sight, so we need to combine the other techniques to solve the three-dimensional shape variables in order to obtain the deformation of the real surface. In this study, using a seismic area as the research area, using the data of the sentinel number one before and after the earthquake, based on the D-InSAR and the MAI technology, the seismic shape variables are obtained, and a joint solution is made according to the equal weight distribution. Finally, the three-dimensional deformation information of the earthquake area is obtained.
引文
[1] 陈坤.雷达遥感在地震监测中的应用研究[D].陕西西安:西安科技大学,2017.
[2] ZEBKER H A,WERNER C L. Accuracy of Top-ographic Maps Derived from ESR-1 Interferometric Radar[J].IEEE Transaction on Geoscience Remote Sensing,1994,32(4):823-836.
[3] 温扬茂,许才军,李振洪,等.InSAR约束下的2008年汶川地震同震和震后形变分析[J]地球物理学报,2014,57(6):1814-1824.
[4] 邵芸.雷达差分干涉测量技术及其应用研究-以1997年西藏玛尼7.9级地震区域形变测量为例[J].地球物理学报,2002,45(增):205-213.
[5] 高明亮,宫辉力,陈蓓蓓,等.基于InSAR技术的地表三维形变获取方法综述[J].测绘通报,2017(1):1-4.
[6] BECHOR N B D,ZEBKER H A. Measuring Two-dimen-sional Movements Using a Single InSAR Pair[J].Geo-physical Research Letters,2006,331(16):275-303.
[7] 邵叶.基于D-InSAR和Offset_Tracking技术的同震形变场提取研究[D].北京:中国地震局预测研究所,2011.
[8] FUNNING G J,PARSONS B,WRIGHT T J. et al. Surface Displacements and Source Parameters of the 2003 Bam(Iran) Earthquake from Envisat Advanced Synthetic Aperture Radar Imagery[J].Geophysical Research Letters,2005,110(B9):B09406.
[9] 薛腾飞.利用升降轨SAR数据提取地震三维同震形变场中模型的完善与实现[D].北京:首都师范大学,2013.
[10] 刘斌.InSAR高精度观测地震形变场及其三维重建技术研究[D].黑龙江哈尔滨:中国地震局工程力学研究所,2013.
[11] 张训虎,章磊,郝树宾,等.合成孔径雷达干涉(InSAR)测量技术应用及展望[J].北京测绘,2014(2):28-31.
[12] 王洪友.基于D-InSAR技术和MAI技术加权获取巴姆三维地震同震形变场[D].北京:中国地质大学,2014.
[13] 郭利民.基于InSAR与多源数据的三维形变场获取研究与应用[D].北京:中国地震局地质研究所,2014.
[14] 邹积亭,刘运明.D-InSAR在地面形变监测中的应用研究[J].北京测绘,2009(2):19-22.
[15] 王晓文.基于InSAR和MAI的电离层误差校正及同震三维形变场计算与断层滑动反演[D].四川成都:西南交通大学,2017.
[16] 洪顺英.基于多视线向D-InSAR技术的三维同震形变场解算方法研究及应用[J].国际地震动态,2012(10):45-48.
[2] ZEBKER H A,WERNER C L. Accuracy of Top-ographic Maps Derived from ESR-1 Interferometric Radar[J].IEEE Transaction on Geoscience Remote Sensing,1994,32(4):823-836.
[3] 温扬茂,许才军,李振洪,等.InSAR约束下的2008年汶川地震同震和震后形变分析[J]地球物理学报,2014,57(6):1814-1824.
[4] 邵芸.雷达差分干涉测量技术及其应用研究-以1997年西藏玛尼7.9级地震区域形变测量为例[J].地球物理学报,2002,45(增):205-213.
[5] 高明亮,宫辉力,陈蓓蓓,等.基于InSAR技术的地表三维形变获取方法综述[J].测绘通报,2017(1):1-4.
[6] BECHOR N B D,ZEBKER H A. Measuring Two-dimen-sional Movements Using a Single InSAR Pair[J].Geo-physical Research Letters,2006,331(16):275-303.
[7] 邵叶.基于D-InSAR和Offset_Tracking技术的同震形变场提取研究[D].北京:中国地震局预测研究所,2011.
[8] FUNNING G J,PARSONS B,WRIGHT T J. et al. Surface Displacements and Source Parameters of the 2003 Bam(Iran) Earthquake from Envisat Advanced Synthetic Aperture Radar Imagery[J].Geophysical Research Letters,2005,110(B9):B09406.
[9] 薛腾飞.利用升降轨SAR数据提取地震三维同震形变场中模型的完善与实现[D].北京:首都师范大学,2013.
[10] 刘斌.InSAR高精度观测地震形变场及其三维重建技术研究[D].黑龙江哈尔滨:中国地震局工程力学研究所,2013.
[11] 张训虎,章磊,郝树宾,等.合成孔径雷达干涉(InSAR)测量技术应用及展望[J].北京测绘,2014(2):28-31.
[12] 王洪友.基于D-InSAR技术和MAI技术加权获取巴姆三维地震同震形变场[D].北京:中国地质大学,2014.
[13] 郭利民.基于InSAR与多源数据的三维形变场获取研究与应用[D].北京:中国地震局地质研究所,2014.
[14] 邹积亭,刘运明.D-InSAR在地面形变监测中的应用研究[J].北京测绘,2009(2):19-22.
[15] 王晓文.基于InSAR和MAI的电离层误差校正及同震三维形变场计算与断层滑动反演[D].四川成都:西南交通大学,2017.
[16] 洪顺英.基于多视线向D-InSAR技术的三维同震形变场解算方法研究及应用[J].国际地震动态,2012(10):45-48.