利用GPS-InSAR合成方法进行地面沉降研究的现状与展望

近年来 ,合成孔径雷达干涉测量技术应用于地面沉降研究领域的实例已在国内外工程和科研实践中多见报道。与此同时 ,利用GPS技术监测地面沉降也日臻成熟与完善。GPS InSAR合成方法将这二种方法融合 ,能够在空间域与时间域同时发挥出各自优势从而提升地面沉降监测数据的分辨率 ,已开始成为国内外地面沉降测量技术研究的重点。本文综述了GPS InSAR合成技术的理论与方法 ,对其目前进展及应用前景进行了探讨。最后对上海地区开展此项研究进行了展望。

Present and prospect of InSAR-GPS Integration for research of Land Subsidence

ore and more examples of Interferometric Synthetic Aperture Radar (InSAR) applied in the area of Land Subsidence have been reported recently at home and abroad. Meanwhile, applications of GPS to measure land deformation have become an efficiently and accurately measuring technology. GPS-InSAR Integration can enhance the ability of measuring land deformation in both temporal resolution and spatial resolution; it is becoming an important direction of Land Subsidence investigation technology. This paper demonstrates the theory and method of GPS-InSAR Integration, discusses its present situation and gives a prospect of GPS-InSAR.