Technology Application |
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THE APPLICATION OF INSAR TECHNOLOGY TO MINING AREA SUBSIDENCE MONITORING |
LIU Guang 1,GUO Hua-dong 1,RAMON Hanssen 2,ZBIGNIEW Perski 2,LI Xin-wu 1,3,YUE Huan-yin4,FAN Jin-hui 1,5 |
1.State Key Laboratory of Remote Sensing Science,Institute of Remote Sensing Applications,CAS and Beijing Normal University,Beijing 100101,China;2.Department of DEOS,Delft University,the Netherlands,2629 HS;3.Key Laboratory of Resources Remote Sensing & Digital Agriculture,Ministry of Agriculture,Beijing 100081,China;4.National Key Laboratory of Microwave Imaging,Institute of Electronics,CAS,Beijing 100080,China;5.China Aero Geohpysical Survey and Remote Sensing Center for Land and Resources,Beijing 100083,China |
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Abstract Interferometry SAR is an emerging earth observation technique,which is especially useful in cartography and surface subsidence survey. This paper describes the method for monitoring the mining activities using the InSAR technique. Both ENVISAT ASAR and JERS1 SAR data were used to generate deformation interferograms,Characteristics of coherence as well as phase patterns on the C band and L band deformation interferograms were comparatively studied,and the feasibility and limitation of using InSAR technology in mining area subsidence monitoring were analyzed. The experimental result shows that both C band and L band can accomplish the monitoring of mining area subsidence,but C band has more restricted conditions for its perpendicular baseline. For the purpose of obtaining a satisfactory outcome in mining area subsidence monitoring by using the InSAR method,the time series of SAR images of every visit period and SAR deformation interferograms should be established.
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Issue Date: 15 July 2009
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