摘要
综述各种从卫星雷达影像提取地面高程信息的基本原理及其处理流程。首先分析雷达测量的特征及其与一般航测遥感的基本差别 ,随后着重介绍了从单幅雷达影像和各种干涉模式下的雷达影像提取地面高程信息的原理和数据处理流程。最后叙述了雷达干涉测量的应用领域 ,列出了INSAR在地形测量、火山地形测量和D -IN SAR在地形沉降监测中的应用 。
The principle and application of DEM extracion for SAR image is overviewed in this paper.The differences between SAR and common photogrammetry and remote sensing are analysied,then the principle and processing flow of extracting DEM from single SAR and interferometry SAR is introduced particularly . Afterward, listing the application fields of INSAR to terrain surveying, volcanic terrain surveying and D-INSAR for monitoring ground subsiding and the existing problem and application envisions are also presented in the last part of this paper.
出处
《大地测量与地球动力学》
CSCD
2002年第2期1-6,共6页
Journal of Geodesy and Geodynamics
基金
国家自然科学基金资助项目 (4 0 0 2 3 0 0 4)资助
