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3D Surface velocity retrieval of mountain glacier using an offset tracking technique applied to ascending and descending SAR constellation data:a case study of the Yiga Glacier

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International Journal of Digital Earth 2019年第6期12卷 614-624页

作者： Qun Wang Jinghui Fan Wei Zhou Liqiang Tong Zhaocheng Guo Guang Liu Weilin Yuan Joaquim Joao Sousa zbigniew perski School of Land Science and Technology China University of GeosciencesBeijingPeople’s Republic of China Division of Remote Sensing for Environment China Aero Geophysical Survey and Remote Sensing Center for Land and ResourcesBeijingPeople’s Republic of China Key Laboratory of Digital Earth Science Institute of Remote Sensing and Digital EarthChinese Academy of SciencesBeijingPeople’s Republic of China School of Sciences and Technology University of Trás-os-Montes e Alto DouroVila RealPortugal Centre for Robotics in Industry and Intelligent Systems INESC TECPortoPortugal Polish Geological Institute—National Research Institute CracowPoland

COSMO-SkyMed is a constellation of four X-band high-resolution radar satellites with a minimum revisit period of 12 *** satellites can obtain ascending and descending synthetic aperture radar(SAR)images with very similar periods for use in the three-dimensional(3D)inversion of glacier *** this paper,based on ascending and descending COSMO-SkyMed data acquired at nearly the same time,the surface velocity of the Yiga Glacier,located in the Jiali County,Tibet,China,is estimated in four directions using an offset tracking technique during the periods of 16 January to 3 February 2017 and 1 February to 19 February *** the geometrical relationships between the measurements and the SAR images,the least square method is used to retrieve the 3D components of the glacier surface velocity in the eastward,northward and upward *** results show that applying the offset tracking technique to COSMO-SkyMed images can be used to derive the true 3D velocity of a glacier’s *** the two periods,the Yiga Glacier had a stable velocity,and the maximum surface velocity,2.4 m/d,was observed in the middle portion of the glacier,which corresponds to the location of the steepest slope.

关键词： Mountain glacier inversion of 3D movement offset tracking SAR constellation data

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一种改进的SAR干涉图综合滤波算法研究

国土资源遥感 2012年第1期24卷 28-35页

作者：宋瑞刘广 perski zbigniew 郭华东北京航空航天大学仪器科学与光电工程学院北京100191 中国科学院对地观测与数字地球科学中心北京100094 Polish Geological Institute National Research Institute Carpathian BranchPoland 31560

SAR干涉图作为相位信息的载体,其质量直接影响对研究区域形变状况的进一步分析,采取有效的滤波算法能抑制干涉图相位噪声,提高干涉测量精度。在获得的干涉相位图中,由于矿区开采而造成的地表沉降会体现出近环状相位条纹的特征。针对这... 详细信息

SAR干涉图作为相位信息的载体,其质量直接影响对研究区域形变状况的进一步分析,采取有效的滤波算法能抑制干涉图相位噪声,提高干涉测量精度。在获得的干涉相位图中,由于矿区开采而造成的地表沉降会体现出近环状相位条纹的特征。针对这一特点,对传统的基于梯度的滤波算法做出了改进,并结合Goldstein频域滤波和改进的梯度自适应滤波,提出了一种适用于矿区沉降形成的SAR干涉相位模式滤波方法。选取河北峰峰煤矿的PALSAR干涉相位图作为实验数据,对该滤波方法做出了详细的性能评价和对比。结果表明,采用本文提出的综合滤波方法在显著降低实验区SAR干涉图相位噪声的同时,也很好地保持了相位分辨率,使由于矿区沉降而造成的形变相位环的边缘形态更加清晰。

关键词： SAR干涉图 Goldstein滤波改进的梯度自适应滤波矿区地表沉降

Land Surface Displacement Geohazards Monitoring Using Multi-temporal InSAR Techniques

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Journal of Geodesy and Geoinformation Science 2021年第1期4卷 77-87页

作者： Guang LIU perski zbigniew Salvi STEFANO Thiebes BENNI Lixin WU Jinghui FAN Shibiao BAI Lianhuan WEI Shiyong YAN Rui SONG Bignami CHRISTIAN Tolomei CRISTIANO Stefan SCHNEIDERBAUER Joao Sousa JOAQUIM 无 Key Laboratory of Digital Earth Science Institute of Remote Sensing and Digital EarthChinese Academy of SciencesBeijing 100094China Carpathian Branch Polish Geological Institute-National Research InstituteCracow 31-560Poland National Institute of Geophysics and Volcanology Roma 605-00143Italy German Committee for Disaster Reduction Bonn 1353113Germany School of Resources and Civil Engineering Northeastern UniversityShenyang 110819China Division of Remote Sensing for Environment China Aero Geophysical Survey&Remote Sensing Center for Natural ResourcesBeijing 100083China School of Marine Science and Ocean Engineering Nanjing Normal UniversityNanjing 210046China School of Environment Science and Spatial Informatics China University of Mining and TechnologyXuzhou 221116China Mullard Space Science Laboratory Department of Space and Climate Physics University College London Holmbury RH56NTUK Eurac Research Bolzano 39100Italy School of Science and Technology University of Trás-os-Montes e Alto DouroVila Real 5000-801Portugal Centre for Robotics in Industry and Intelligent Systems(CRIIS) INESC Technology and Science(INESC-TEC)Porto 4200-465Portugal

China has been affected by some of the world’s most serious geological disasters and experiences high economic damage every *** occur not only in remote areas but also in highly populated *** the framework of the Dragon-432365 Project,this paper presents the main results and the major conclusions derived from an extensive exploitation of Sentinel-1,ALOS-2(Advanced Land Observing Satellite 2),GF-3(Gao Fen Satellite 3),and latest launched SAR(Synthetic Aperture Radar),together with methods that allow the evaluation of their importance for various ***,in the scope of this project,the great benefits of recent remote sensing data(wide spatial and temporal coverage)that allow a detailed reconstruction of past displacement events and to monitor currently occurring phenomena are exploited to study different areas and geohazards problems,including:surface deformation of mountain slopes;identification and monitoring of ground movements and subsidence;landslides;ground fissure;and building inclination *** movements detected in the different study areas were cross validated with different SAR sensors and truth data.

关键词： Dragon-4 project Sentinel-1 GF-3 landslide geohazards InSAR

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多模式雷达在矿区沉降监测中的应用研究

遥感技术与应用 2012年第4期27卷 584-590页

作者：刘金龙郭华东宋瑞 zbigniew perski 刘广赵峰范景辉闫世勇阮智星中国科学院对地观测与数字地球科学中心数字地球重点实验室北京100094 中国科学院研究生院北京100049 波兰国立地质研究所波兰31560 北京航空航天大学仪器科学与光电工程学院北京100191 中国国土资源航空物探遥感中心北京100083

合成孔径雷达差分干涉测量(DInSAR)技术在地表形变监测方面已得到广泛应用。介绍了将差分InSAR技术运用于矿区地表沉降监测,获得了河北峰峰煤矿地表Envisat/ASAR和ALOS/PALSAR的雷达形变干涉相位图,并对Envisat C波段和ALOS L波段的形... 详细信息

合成孔径雷达差分干涉测量(DInSAR)技术在地表形变监测方面已得到广泛应用。介绍了将差分InSAR技术运用于矿区地表沉降监测,获得了河北峰峰煤矿地表Envisat/ASAR和ALOS/PALSAR的雷达形变干涉相位图,并对Envisat C波段和ALOS L波段的形变干涉相位图进行了相干特性和相位特性的分析。通过综合考虑C波段和L波段的优势与不足,将两者联合使用,实验表明利用多模式雷达数据对矿区地表沉降进行检测的可行性。同时,通过对雷达干涉相位图的分析,能够及时提供正在进行地下开采活动的矿区地理位置。

关键词：合成孔径雷达差分干涉测量矿区地表沉降形变干涉相位图多模式雷达

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InSAR技术在矿区沉降监测中的应用研究

国土资源遥感 2008年第2期20卷 51-55,I0007,I0008页

作者：刘广郭华东 Ramon Hanssen zbigniew perski 李新武岳焕印范景辉中国科学院遥感应用研究所遥感科学国家重点实验室北京100101 Department of DEOS Delft Universitythe Netherlands2629 HS 农业部资源遥感与数字农业重点开放实验室北京100081 中国科学院电子学研究所微波成像技术国家级重点实验室北京100080 中国国土资源航空物探遥感中心北京100083

介绍了应用InSAR技术监测矿区地表沉降以及地下开采活动的原理;利用重轨差分InSAR技术获得了峰峰矿区地表ENVISAT和JERS 1的雷达形变干涉相位图;分析了在矿区地表沉降过程中ENVISATC波段和JERS 1 L波段形变干涉相位图的相干特性、相位... 详细信息

介绍了应用InSAR技术监测矿区地表沉降以及地下开采活动的原理;利用重轨差分InSAR技术获得了峰峰矿区地表ENVISAT和JERS 1的雷达形变干涉相位图;分析了在矿区地表沉降过程中ENVISATC波段和JERS 1 L波段形变干涉相位图的相干特性、相位特性以及干涉测量技术在矿区地表沉降监测中应用的可行性和局限性。实验结果表明,利用C波段和L波段雷达数据可以实施对矿区地表沉降的监测,但是C波段雷达受到空间干涉基线的限制更加严格,如果要实现对矿区地表沉降的监测,需要充分利用每个卫星回访时期的雷达数据,建立长时序的星载雷达形变干涉相位图序列,才能较好地实现矿区地表沉降监测。

关键词：矿区地表沉降干涉测量形变干涉相位图