TOPS模式Sentinel-1数据地面沉降监测研究
发布时间：2018-08-19 13:17
【摘要】：随着InSAR技术的发展、雷达卫星设计技术的提高以及大面积多时相监测的需求增加,宽幅成像模式在对地监测中的应用越来越广泛。欧空局(ESA)发射的Sentinel-1系列卫星IW(Interferometric Wide Swath Mode)模式下采集的宽幅雷达数据,幅宽可达250Km,IW模式即为宽幅扫描中的TOPS(Terrain Observation by Progressive Scans)扫描模式,TOPS模式数据在采集时通过在方位向上卫星天线的运动,获取宽幅数据的同时也有效的消除了ScanSAR模式的扇贝效应。Sentinel-1的TOPS模式数据将在地震、火山运动、大面积地面沉降监测中有应用前景。本文以Sentinel-1的TOPS模式数据为基础,对数据的特性与配准要求进行分析,在此基础上进行应用研究,论文的主要内容包括:(1)对InSAR成像模式以及基本原理进行归纳整理,对宽幅成像的两种模式(ScanSAR与TOPSAR)进行分类对比,对TOPSAR模式数据的理论特性与该模式所需要的千分之一的配准进行理论分析。(2)几何配准与ESD算法结合研究,首先通过几何配准对影像进行初配准,在此基础上利用ESD算法对影像进行迭代分析,最终达到影像的配准要求的千分之一配准精度,并利用两景覆盖台湾地震场的数据进行配准与干涉实验并得出相应结论。(3)偏移量追踪技术与D-InSAR技术结合研究,将偏移量追踪技术与D-InSAR技术两者进行结合,利用TOPS模式数据作为数据源,对日本熊本地震进行研究。对地震中相干区域利用D-InSAR技术提取形变信息,对于地震中心部分形变较大导致的失相干区域,利用偏移量追踪技术进行形变提起。对偏移量追踪技术进行去地形效应改正,并在该地震中心失相干区域进行应用分析。(4)利用TOPS模式数据通过时间序列分析,对江苏沛北矿区5个矿的地面沉降进行研究。针对该地区同时存在采煤与采水的情况,对沉降区域进行分类讨论。(5)利用TOPS模式数据对沧州地区进行地表沉降时序分析,同时结合ENVISAT的ASAR数据,对该地区进行长时间跨度的监测,对采水所导致的地面沉降的特性进行研究。
[Abstract]:With the development of InSAR technology, the improvement of radar satellite design technology and the increasing demand of large area multi-phase monitoring, the wide-amplitude imaging mode is more and more widely used in ground monitoring. The wide range radar data collected under the IW (Interferometric Wide Swath Mode) mode of Sentinel-1 series satellites launched by ESA (ESA), the width of which can be up to 250 km / m / IW mode, is the movement of the TOPS (Terrain Observation by Progressive Scans) scanning mode / tops mode data in the wide range scanning by means of the azimuth upward satellite antenna. Obtaining wide range data and effectively eliminating the scallop effect of ScanSAR model Sentinel-1 TOPS model data will have a potential application in earthquake, volcanic movement and large area land subsidence monitoring. Based on the TOPS data of Sentinel-1, the characteristics and registration requirements of the data are analyzed in this paper. The main contents of this paper are as follows: (1) the basic principle and the mode of InSAR imaging are summarized. In this paper, two modes of wide-amplitude imaging (ScanSAR and TOPSAR) are classified and compared, and the theoretical characteristics of TOPSAR mode data and the registration of 1/1000 required by this mode are analyzed theoretically. (2) the combination of geometric registration and ESD algorithm is studied. First, the image is first registered by geometric registration, and then the ESD algorithm is used to iterate the image analysis. Finally, the 1/1000 registration accuracy of image registration is achieved. The registration and interference experiments are carried out using the data of two scenes covering the seismic field in Taiwan. (3) the migration tracing technique and the D-InSAR technique are studied, and the migration tracing technique and the D-InSAR technique are combined. Using TOPS data as data source, the Kumamoto earthquake in Japan is studied. D-InSAR technique is used to extract deformation information for coherent region in earthquake, and offset tracing technique is used to raise deformation in the incoherent region caused by large deformation in seismic center. The migration tracing technique is used to correct the topographic effect, and the application analysis is carried out in the incoherent area of the seismic center. (4) the ground subsidence of 5 mines in Pei Bei Mining area, Jiangsu Province, is studied by using TOPS model data through time series analysis. In view of the situation that coal mining and water mining exist simultaneously in this area, the subsidence area is classified and discussed. (5) using TOPS model data to analyze the time series of surface subsidence in Cangzhou area, and combining the ASAR data of ENVISAT. The long span monitoring is carried out in this area and the characteristics of land subsidence caused by water extraction are studied.
【学位授予单位】：中国矿业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：P642.26
本文编号：2191763
[Abstract]:With the development of InSAR technology, the improvement of radar satellite design technology and the increasing demand of large area multi-phase monitoring, the wide-amplitude imaging mode is more and more widely used in ground monitoring. The wide range radar data collected under the IW (Interferometric Wide Swath Mode) mode of Sentinel-1 series satellites launched by ESA (ESA), the width of which can be up to 250 km / m / IW mode, is the movement of the TOPS (Terrain Observation by Progressive Scans) scanning mode / tops mode data in the wide range scanning by means of the azimuth upward satellite antenna. Obtaining wide range data and effectively eliminating the scallop effect of ScanSAR model Sentinel-1 TOPS model data will have a potential application in earthquake, volcanic movement and large area land subsidence monitoring. Based on the TOPS data of Sentinel-1, the characteristics and registration requirements of the data are analyzed in this paper. The main contents of this paper are as follows: (1) the basic principle and the mode of InSAR imaging are summarized. In this paper, two modes of wide-amplitude imaging (ScanSAR and TOPSAR) are classified and compared, and the theoretical characteristics of TOPSAR mode data and the registration of 1/1000 required by this mode are analyzed theoretically. (2) the combination of geometric registration and ESD algorithm is studied. First, the image is first registered by geometric registration, and then the ESD algorithm is used to iterate the image analysis. Finally, the 1/1000 registration accuracy of image registration is achieved. The registration and interference experiments are carried out using the data of two scenes covering the seismic field in Taiwan. (3) the migration tracing technique and the D-InSAR technique are studied, and the migration tracing technique and the D-InSAR technique are combined. Using TOPS data as data source, the Kumamoto earthquake in Japan is studied. D-InSAR technique is used to extract deformation information for coherent region in earthquake, and offset tracing technique is used to raise deformation in the incoherent region caused by large deformation in seismic center. The migration tracing technique is used to correct the topographic effect, and the application analysis is carried out in the incoherent area of the seismic center. (4) the ground subsidence of 5 mines in Pei Bei Mining area, Jiangsu Province, is studied by using TOPS model data through time series analysis. In view of the situation that coal mining and water mining exist simultaneously in this area, the subsidence area is classified and discussed. (5) using TOPS model data to analyze the time series of surface subsidence in Cangzhou area, and combining the ASAR data of ENVISAT. The long span monitoring is carried out in this area and the characteristics of land subsidence caused by water extraction are studied.
【学位授予单位】：中国矿业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：P642.26
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