机载SAR交向立体模式及定位方法研究  

Study on crossed stereo mode and positioning methods of airborne SAR

作　　者：范洪冬[1,2] 黄国满[2] 邓喀中[1] 

机构地区：[1]中国矿业大学环境与测绘学院,江苏徐州221008 [2]中国测绘科学研究院,北京100039

出　　处：《测绘科学》2009年第2期48-49,144,共3页Science of Surveying and Mapping

摘　　要：为了充分使用构架或受限飞行时获取的交向影像,本文对机载SAR交向立体模式及定位方法进行了研究。首先,简要比较了三种利用SAR影像提取DEM的方法,分析了机载雷达立体测量的意义。其次,研究了SAR交向立体获取方式及所获取立体影像对的特点。最后,应用两种立体定位模型,即距离-多普勒模型和多项式正射校正模型,对陕西某地1m分辨率SAR影像对进行了实验分析,取得了较好的定位精度。In order to adequately use the crossed images that are obtained in truss or restricted flights, the crossed stereo mode and positioning methods of airborne SAR are researched in this paper. First of all, three kinds of methods of DEM generation from SAR images are briefly compared, and research significance of airborne StereoSAR is analyzed. Secondly, SAR crossed stereo mode and characteristics of image pairs are researched. Finally, using two stereo positioning methods, Range-Doppler model and polynomial orthorectification model, experiments are done on 1 m resolution airborne SAR images in a certain place of ShanXi province, and the positioning accuracy is very well.

关 键 词：机载SAR 交向 立体 定位方法 DEM 

分 类 号：TP751[自动化与计算机技术—检测技术与自动化装置]