大气延迟误差对InSAR和D-InSAR数据处理影响的定量分析  

Quantitative Analysis of Atmospheric Delay Error in InSAR and D-InSAR Data Processing

作　　者：许义[1] 岳东杰[1] 

机构地区：[1]河海大学测绘科学与工程系,南京市210098

出　　处：《勘察科学技术》2013年第4期20-23,共4页Site Investigation Science and Technology

摘　　要：大气延迟是InSAR重复轨道干涉测量的主要误差源之一。该文基于星载InSAR的基本原理,将大气延迟引起的附加干涉相位作为一种相位误差,利用误差传播定律定量地分析了大气延迟误差对高程测量和形变测量(二轨法、三轨法和四轨法)的影响,做出了误差传播曲线,得到了大气延迟误差对InSAR测量的影响规律。Atmospheric delay is one of the main error sources in InSAR repeat-track interferometry.Based on the basic principles of InSAR,the additional interference phase causing by atmospheric delay is used as a phase error.Using propagation laws of error,the influence of height measurement and deformation measurement（two-track,three-track and four-track method） by atmospheric delay error are analyzed,the error propagation curves are made,and the influence laws of atmospheric delay error in InSAR measurement are also obtained.

关 键 词：大气延迟误差 INSAR D-INSAR 

分 类 号：P225[天文地球—大地测量学与测量工程]