北京交通大学学报2011，Vol.35Issue(4)：112-115,4.
基于GCP的基线估计提取高精度DEM研究
Precision study on the DEM generated from estimation of baseline parameters based on GCP
摘要
Abstract
InSAR (Synthetic Aperture Radar Interferometry) , for its special advantages, has been a new approach to obtaining DEM with high-accuracy quickly. And the estimation of baseline parameters is a major influence factor for the precision of DEM generated from InSAR. The baseline estimation codes of the typical algorithms are worked out based on GCP (Ground Control Points), and the results are analyzed comparatively from several baseline corrections using ENVISAT ASAR data operating C-band. Then the DEM of Dujiangyan is generated with InSAR technology and the precision of DEM is evaluated by comparing with the local 1:10 000 national standard topographic map. The result demonstrates that the precision of DEM after baseline correction based on GCP can satisfy the demands of the three-level products of the national 1:50 000 DEM conditionally.关键词
基线估计/GCP法/数字高程模型/雷达干涉测量/ASARKey words
baseline estimation/ GCP/ DEM/ InSAR/ ASAR分类
天文与地球科学引用本文复制引用
师红云,杨松林,魏庆朝,杜勇..基于GCP的基线估计提取高精度DEM研究[J].北京交通大学学报,2011,35(4):112-115,4.基金项目
围家“863”计划项目资助(2009AA12Z131) （2009AA12Z131）
