基于差分雷达干涉的矿区沉陷监测

In order to achieving continuous surface deformation, which with high accuracy, continuous monitoring and low cost characteristics, in subsidence area. This paper studies the interferometric based on the acquired radar images of Bin-chang mining area in Shaanxi province, gets the small deformation from difference phase before and after deformation, analyses the impact of coherent sources according to the actual situation of the mine area and its errors. Eventually, the paper comprehensively analyses the deformation data from the images according to the theory of mining subsidence and practical situation of the mine.　Results show that: D-InSAR technology, can accurately reflect coal mining subsidence position and sinking degree, especially in the loess plateau, geological and geomorphic conditions which is more complexity, the D-InSAR technology shows more applicability and advantages with low cost.