摘要
采用影像匹配的方法实施对机载合成孔径雷达（SAR）影像的快速定位，需要首先确定SAR影像的概略位置。本文利用机载SAR系统所获取的DGPS／IMU辅助数据，在SAR图像覆盖区数字高程模型（DEM）数据支持下，探讨了利用Leberl方程解算像点对应的地面点坐标，进而描述了对SAR图像概略定位的技术与方法，实验结果表明该方法是可行的。
The approximate position is required firstly when using image match method to realize fast position for airborne SAR image. In this paper, the Leberl equation is employed to calculate the ground point positions of the related image＇s points, in the SAR image coverage area, by using DGPS/IMU data output by the airborne SAR system, in the supporting of corresponding DEM data. The related calculate technique and method are described. An experi- ment is implemented, which shows that the proposed approximately positioning method for the SAR image is feasible.
出处
《测绘科学与工程》
2008年第1期19-22,共4页
Geomatics Science and Engineering
