【摘要】 雷达干涉测量(InSAR)和雷达立体测量(Radargrammetry)是使用SAR影像生成DEM的两种主动遥感新技术,前者利用反射雷达波的相位信息,而后者利用其灰度信息。本文利用ERS-1/2卫星对香港地区成像获取的SAR影像分别构成干涉像对和立体像对生成了DEM,并以外部DEM为参考,利用对比和统计方法分析了两种测量方法的精度情况和技术优势。更多还原

【Abstract】 SAR Interferometry (InSAR) and Radargrammetry are two new technologies of the active remote sensing,and the former uses the phase information of the Radar reflected wave,and the latter uses the gray information.The multiple SAR images acquired by ERS-1/2 over Hong Kong were used to form several interferometric pairs and stereo pairs for DEM creation,and this paper analyzed the precision and technical advantages of these two measurement methods using antitheses and statistical methods taking the external DEM as reference.更多还原