【摘要】 随着TerraSAR-X、COSMO-SkyMed等新型高分辨率SAR卫星的成功发射,雷达遥感进入快速发展阶段,对高分辨率SAR影像模拟存在大量需求。利用一种基于简化定位模型的方法对TerraSAR-X影像进行模拟,只利用DEM数据就可以模拟出任意平台高度、任意入射角、任意分辨率、任意视向和飞行方位角情况下的SAR影像和叠掩、阴影情况,而且不需要精确的卫星轨道参数和系统参数,通过与真实影像的对比,证明方法的有效性。文中方法可以在高分辨率SAR数据选择、测试不同成像参数对雷达影像的影响等多个方面应用。更多还原

【Abstract】 The newly launched TerraSAR-X,COSMO-SkyMed and other high resolution SAR satellites mark that SAR has entered the fast development stage and there is a large demand for high resolution SAR image simulation.Based on a simplified location model,TerraSAR-X image simulation is performed by use of high resolution DEM,which can simulate SAR image in any satellite height,incidence angle,resolution,aspect and heading angle only using DEM.By comparing the simulation result and the real SAR image,the method can achieve good results in mountainous area.This method will benift many fields,such as guiding users to order the optimal data and SAR image tests in different imaging parameters.更多还原