杭州师范大学学报（自然科学版）2016，Vol.15Issue(2)：208-213,6.DOI:10.3969/j.issn.1674-232X.2016.02.016
外部参考 DEM对 IPTA 地面沉降监测结果的影响分析
The Influences of External DEM on IPTA Ground Subsidence Monitoring Results
摘要
Abstract
With the diversification of DEM access ,the influences of DEM precision on the result of ground subsidence need to be discussed .In this paper ,basing on two common external reference DEMs (SRTM and ASTER GDEM ) ,the ground subsidence experiment of Pearl River Delta is carried out using IPTA method .The error is analyzed separately from the registration accuracy between DEMs and interferogram figure ,the precision of DEMs ,the ground subsidence results , unwrapping phase and the quality of PS points .The results show that in the IPTA experiment ,the SRTM is better than ASTER GDEM in application ,and it is more suitable to be the external DEM .关键词
相干点目标法(IPTA)/SRTM/ASTER GDEM/误差分析Key words
IPTA/STRM/ASTER GDEM/error analysis分类
天文与地球科学引用本文复制引用
王洁,李海宁,张登荣,谢斌..外部参考 DEM对 IPTA 地面沉降监测结果的影响分析[J].杭州师范大学学报（自然科学版）,2016,15(2):208-213,6.基金项目
杭州市社会发展科研专项（20130533B12）． （）
