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提出了一种天基光学成像系统对空间目标和背景成像的模拟方法。首先利用3DMAX软件创建精确的空间目标三维模型;然后根据目标的结构特性建立了目标的光照模型,利用光线跟踪算法计算目标卫星各小面元传递到CCD镜头处的能量值。在此基础上,结合空间环境、空间目标运动特性和成像模型构建了空间目标和背景特性仿真演示系统。仿真结果表明:该方法可有效地模拟天基光学成像系统对空间目标和背景成像。
A space-based optical imaging system for space object and background imaging simulation method. Firstly, 3DMAX software is used to create a precise three-dimensional model of the space object. Then, the illumination model of the target is established according to the structural characteristics of the target. The ray tracing algorithm is used to calculate the energy transmitted from each satellite to the CCD lens. On this basis, a simulation demonstration system of spatial target and background characteristics is constructed based on the spatial environment, the spatial target movement characteristics and the imaging model. The simulation results show that this method can effectively simulate space-borne targets and background imaging by space-based optical imaging system.