Studying the space-based optical surveillance system and target identification algorithm utilizing simulation technology has been one of the hottest problems currently. The simulation principle and method of space object visible images which can embody the range and system performance of actual space-based optical surveillance systems based on STK and OpenGL is put forward. The target reflection radiation model, as well as the relationship between OpenGL imaging model and the pinhole imaging model of real imaging system, are both researched. Imaging simulation process includes 3D target modeling, orbital analysis based on STK, imaging simulation based on OpenGL, noise and blur effects modeling. At last the serial visible images of moving space object are simulated. It can provide data base for the research of space-based target identification technology.
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