光学图像的几何仿真，采用已有的光学图像作为参考，布置在传感器照射范围区域，然后根据卫星轨道、姿态等获得新的图像，该图像能够反映原始图像的几何特性-Optical image geometry simulation, using the existing optical image as a reference, arranged in the area illuminated area of ​ ​ the sensor, then the satellite orbit,

Advanced synthetic aperture radar (SAR) systems achieve high spatial resolution by using wide range bandwidth combined with long azimuth illumination time. In order to deal with such sensor parameters, high quality SAR focusing methods and often