Topographic error correction in mining subsidence monitoring using high resolution PSI technique

摘要：

　　High resolution InSAR data play an important role in subsidence monitoring of coal mining city for its high spatial resolution and short revisit cycle.Deformation phase is estimated through regression analysis model by using 13 high resolution TerraSAR-X images, and the PSI time-series technology extracts permanent scatterers based on temporal variability and spectral coherence.In order to remove the residual elevation error caused by the lower resolution SRTM, we proposed an iteration method during the regression analysis to improve the subsidence monitoring accuracy of Tangshan mineral region.The result shows that the maximum subsidence is up to-58.2 mm/yr.Comparing the standard deviation histogram of before iteration and histogram of after iteration, we can see this method achieved great effect on DEM error correction.

关键词： High resolution PSI Mining subsidence Residual terrain error Iteration

作者: Xiaobo Zhang Xuesheng Zhao Daqing Ge

作者单位: College of Geoscience and Surveying Engineering, China University of Mining and Technology (Beijing) China Aero Geophysical Survey and Remote Sensing for Land and Resources, Beijing 100083, China

会议类型: 国际会议

会议名称: 2015 International Academic Forum for Mine Surveying in China(2015中国国际矿山测量学术论坛)

会议地点: 北京

会议语种:英文

页码: 385-390

在线出版日期: 2015-10-16（万方平台首次上网日期，不代表论文的发表时间）