基于OpenGL的卫星覆盖可视化仿真,通过轨道分析了三维和二维显示，星下点-OpenGL-based visual simulation of the satellite coverage through the three-dimensional and two-dimensional orbital analysis shows that the nadir

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,

通过此程序可以仿真出围绕地球运动的卫星，同时可以看到其运动的轨道-This program can simulate the satellite revolves around the earth at the same time you can see its movement track

Java程序，利用WorldWind工具包进行3D地卫系统仿真，可以实现地球自转，卫星绕地球飞行，卫星轨道显示等。-Java program, the use of WorldWind toolkit for 3D defense system simulation, can achieve the Earth s rotation, satellite orbit around the Earth, satellite orbit display.