摘要
根据大气垂直分层延迟与地形的强相关特性,利用覆盖大同地区的40景Envisat ASAR影像进行大气延迟分离实验,并对分离的大气延迟相位与地形和MODIS水汽数据的相关性进行分析。
Atmospheric delay phase is one of the main factors affecting the measurement accuracy of InSAR technology limiting its application in high-precision deformation monitoring.When there are more SAR images,InSAR time series analysis techniques can abstract the the atmospheric phase from numbers of interferograms according to the spatial and temporal phase characteristics.This can be used to correct the atmospheric delay phase in the interferograms.However,there is little research on the reliability of the separated atmospheric delay phase.In this paper,we do a test to separate the the atmospheric delay phase with 40 Envisat ASAR images covering the Datong area.The reliability of the separated atmospheric delay phase is analyzed with the terrain and MODIS data.
出处
《大地测量与地球动力学》
CSCD
北大核心
2015年第1期92-96,共5页
Journal of Geodesy and Geodynamics
基金
国家自然科学基金(41304016
41274004
41372375)
中国地震局地震专项科研基金(201208009)
地理信息工程国家重点实验室开放研究基金(SKLGIE2014-M-3-5)
陕西省自然科学基础研究计划青年项目(2014JQ5185)
