PS-InSAR与SBAS-InSAR监测地表沉降的比较研究

摘要

Taking the analysis of the surface deformation monitoring of Beijing through 31 ENVISAT image from 2004 -2010,as an example, the result of analysis show that the SBAS time-series of the deformation of PS points is little more continuous in space than that of PS and the experimental results show that the result of SBAS and PS are in good agreement and close radically to the monitoring result of Beijing subsidence monitoring site warning forecast system so the result of PS and SBAS is reliable.%阐述PS-InSAR与SBAS-InSAR的方法与原理,以北京地区为例,处理了2004-2010年的31幅ENVISATASAR图像,将两种技术获得的结果作了对比分析.结果表明,PS-InSAR与SBAS-InSAR获得的结果具有很高的一致性;些微的差异主要表现为SBAS-InSAR的PS点形变时间序列在空间上相对更加连续.两种技术所取得的结果与北京市地面沉降的监测结果基本吻合,证明两种方法获得的结果都是可靠的.