为了获取长时间序列的矿区形变情况,利用13景Radar SAT-2影像数据,基于时序累积DIn SAR技术监测矿区开采沉陷,分析矿区地表动态沉降过程,提取下沉值并与水准实测数据进行对比。结果表明,该方法监测的下沉区域和范围与实际相符,其监测结果可靠,标准差为2.3 cm,为实现长时间序列、大范围的形变监测提供了技术手段。 In order to obtain long time series of deformation of mining area, 13 submarine Radar SAT-2 images were used to monitor subsidence of mining area based on time-accumulated DIn SAR technique. Dynamic subsidence of mining area was analyzed. Sink value was extracted and compared with measured data. The results show that the monitored subsidence area and range are in good agreement with the actual ones. The monitoring results are reliable and the standard deviation is 2.3 cm, which provides a technical measure for long time series and large-scale deformation monitoring.