大气延迟误差对InSAR数据处理影响的定量分析  

Quantitative Analysis of Effect of Atmospheric Delay Error on InSAR Data Processing

作　　者：余景波[1,2] 刘国林[1] 曹振坦[1] 崔娟 刘会[2] 

机构地区：[1]山东科技大学测绘科学与工程学院,青岛266590 [2]青岛求实职业技术学院,青岛266108 [3]山东省第四地质矿产勘察院,潍坊261021

出　　处：《空间科学学报》2012年第5期720-729,共10页Chinese Journal of Space Science

基　　金：国家自然科学基金项目(40874001);国家高技术研究发展计划(2009AA122147);山东省自然科学基金资助项目(ZR2010DQ020);对地观测技术国家测绘局重点实验室经费项目(K201010)共同资助

摘　　要：从重复轨道InSAR测量基本原理出发,详细给出了相位测量误差对InSAR测高、双轨法D-InSAR形变测量、三轨法D-InSAR形变测量、四轨法D-InSAR形变测量影响的近似关系式以及大气延迟误差对相位测量影响的近似关系式;以此为基础分别推导出了大气延迟误差对InSAR测高、双轨法D-InSAR形变测量、三轨法D-InSAR形变测量和四轨法D-InSAR形变测量影响的近似关系式,同时以ERS-1星载系统为例进行模拟实验,分析讨论了大气延迟误差对InSAR测高、双轨法D-InSAR形变测量、三轨法D-InSAR形变测量以及四轨法D-InSAR形变测量的影响,从而得出了大气延迟误差对InSAR数据处理影响的结论.The effect approximate relationship formulas of the phase measurement error on height measurement by InSAR and deformation measurement by two-pass, three-pass and four-pass differential InSAR and the effect formulas of atmospheric delay error on the interferometric phase are put forward respectively, taking simultaneously into account the basic principles of the repeat track InSAR measurements. Then, the effect approximate relationship formulas of the atmospheric delay error on height measurement by InSAR and deformation measurement by two-pass differential InSAR, three-pass differential InSAR, four-pass differential InSAR are deduced respectively based on the above formulas. In the last error on InSAR data processing are place, the useful conclusions of the effect of atmospheric delay drawn by taking ERS-1 satellite system simulation experimentsas an example and by talking over and analyzing the effect of atmospheric delay error on height measurement by InSAR and deformation measurement by two-pass differential InSAR, three-pass differential InSAR and four-pass differential InSAR etc.

关 键 词：重复轨道InSAR 大气延迟误差 InSAR测高 InSAR形变测量 ERS-1星载系统 误差影响 

分 类 号：P225.1[天文地球—大地测量学与测量工程]