首页|Integration of InSAR and GPS for hydraulic engineering
Integration of InSAR and GPS for hydraulic engineering
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Interferometric synthetic aperture radar (InSAR) is a potential earth observation approach, and it has been demonstrated to have a variety of applications in measuring ground movement, urban subsidence and landslides. Currently InSAR provides the ability to map accurate DEM and measure ground deformation to sub-centimeter accuracy. However, many factors affect InSAR to measure ground movement since dam constructions are built in a large scale area with a complicated climate and unstable geology. This paper discusses potential applications of integrated InSAR and GPS to monitor a large-scale ground movement due to hy-dropower developments. The integration of InSAR and GPS can provide a cost-effective means for monitoring deformation of hydropower developments. Moreover, two novel methods, both the improved spatial interpolating method and estimation of 3D surface motion velocities method, are proposed and the experimental results and analysis are given in this paper.
InSARGPShydraulic and hydropower engineeringslides monitoring
HE XiuFeng、LUO HaiBin、HUANG QiHuan、HE Min
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Institute of Satellite Navigation & Spatial Information System, Hohai University, Nanjing 210098, China
2007
Science in China, Series E. Technological sciences
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