基于OpenGL的星载可见光相机成像仿真系统

介绍了一种星载可见光相机成像仿真系统，它主要用于模拟星载可见光相机观测其他空间目标时的场景并输出仿真图像。该系统不仅可以为空间目标检测与追踪研究提供图像数据，而且还可以为空间相机的设计及性能评估提供技术支持。采用3ds Max软件建立了空间目标的精准三维模型，并给其赋予了材质属性；使用卫星工具包(Satellite Toolkit, STK)预报了被观测目标和相机的轨道参数，并利用星表提供了星空背景中恒星的位置、星等和自行等参数；在开源图形库(Open Graphics Library, OpenGL)中建立了星载可见光相机观测空间目标时的场景，并模拟了星载可见光相机的观测效果。结果表明，本文系统具有较高的仿真度和渲染速度，可以实现深空点目标和近距离面目标的观测成像效果图的实时渲染。

Spaceborne Visible Light Camera Imaging Simulation System Based on OpenGL

A spaceborne Visible light camera imaging simulation system based on OpenGL is presented. It is mainly used to simulate the scenes when the spaceborne visible light camera is observing other space objects and output simulation images. The simulation system not only can provide image data for space object detection and tracking, but also can provide technical support for the design and performance evaluation of spaceborne cameras. The 3ds Max software is used to establish the precise three-dimensional model for a space object and vest it with material properties. The satellite Toolkit is used to predict the orbital parameters of both the space object and the camera. The star catalog is used to provide the parameters such as the position, magnitude and proper motion of a star against the starry background. In the Open Graphics Library, the scenes when the spaceborne visible light camera is observing a space object are established and the observing effectiveness of the spaceborne visible camera is simulated. The result shows that the simulation system has its higher simulation degree and rendering speed. It can be used to implement the rendering of the observing imaging effectiveness of both point objects in deep space and short distance area objects in real time.