【摘要】 利用2010年6月至2011年4月间获取的26景空间分辨率3m的TerraSAR-X数据,采用StaMPS永久散射体干涉测量技术(PS-InSAR)获取了昆明地区地表形变信息,并对重点沉降区域沉降的时序特征及成因进行了分析。昆明地铁1号线沿线、广昆高速小团山段以及南昆铁路倪家营段地面沉降的监测结果表明,TerraSAR-X数据能获取空间上更为细致的变化,体现了TerraSAR-X数据在地表形变监测上的优势。对比Envisat ASAR数据和TerraSAR-X数据获取的形变监测结果,发现沉降区域分布的地理位置以及沉降的速率都非常接近,表明了PS-InSAR技术地表形变监测结果的正确性。更多还原

【Abstract】 Twenty-six TerraSAR-X images with 3m spatial resolution acquired from Jun 2010 to Apr 2011 is analyzed by StaMPS to study the land subsidence of Kunming,and the time characteristics and the main reasons of the significant subsidence area are analyzed. Metro line one and High-speed-Guangkun Xiao Tuanshan segment as well as the ground subsidence monitoring results of the Nijiaying section of the Nanning-Kunming railway show that TerraSAR-X data can obtain more detail changes in space. Comparing the deformation monitoring results by Envisat ASAR data and TerraSAR-X data, we find that the geographic location,the rate of ground subsidence are very close,indicating the correctness of PS-InSAR technology on surface deformation monitoring.更多还原