Papers by Keyword: PSInSAR

Abstract: Our country is one of the countries that with serious geological disasters,every year we loss nearly twenty billion yuan and hundreds of people dead because of it.How to liberate deformation monitoring from the traditional way by means of modern Synthetic Aperture Radar Interferometry (InSAR) is the responsibility of each technical workers. In this paper, we mainly introduce the recent fast-developed advanced InSAR technology -- Persistent Scatterers for SAR Interfero try PS InSAR and its application on Shuping landslide in the Three Gorges reservoir area .

Abstract: Land subsidence in urban area is becoming a severe geological hazard disturbing the urban construction and development. Persistent Scatterer Interferometric Synthetic Aperture Radar (PSInSAR) technique has demonstrated a good capability of monitoring the large scale land deformation. High resolution and short wave radar data can help to improve the precision of deformation detection based on PSInSAR. In this paper, 15 scenes of TerraSAR-X SAR data are used to derive the estimation of the subsidence rate in the Wuqing district, Tianjin city in China. The combination of TIN and nearest-connection method (NCM) are first used to establish the differential network model. The results show that high resolution TX image can dramatically increase the valid PSs and improve investigation reliability, especially in linear man-made constructs.