Analysis Underground Opening Based On D-InSAR

SAR Interferometry (InSAR) and Differential SAR Interferometry (D-InSAR) are new potential technologies of satellite application, which have very wide application fields and practical value.In this dissertation, we first review the development of InSAR technique. Then, according to the features and the data processing procedure of InSAR, the key technique, including complex images coregistration, interferogram denoising, are studied in detail separately, and the main factors that influence the mapping accuracy are discussed at the same time.According the basic steps of D-InSAR processing, the preliminary results in monitoring of mine subsidence have been carried out. and point out the error caused by the complex effect atmosphere and DEM error. The isoclines of the subsidence and the subsidence profile in typical area also have been generated . Under this premise, the underground opening has been analyzed based on the theories of land subsidence estimate in mineral area. Which provide new technology used for safety guidance and monitoring. That's have a good promotional value.