天基光学成像系统空间目标成像模拟技术  

Simulation of space targets imaging for a space based optical imaging system

作　　者：杨长才[1] 田金文[1] 叶瑾[2] 尚轲[1] 田昕[1] 

机构地区：[1]华中科技大学图像识别与人工智能研究所多光谱信息处理技术国家级重点实验室,湖北武汉430074 [2]华中科技大学武昌分校艺术设计学院,湖北武汉430074

出　　处：《红外与激光工程》2012年第9期2410-2414,共5页Infrared and Laser Engineering

基　　金：国家自然科学基金(61102064)

摘　　要：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 method of simulation space object and background imaging on spaced based optical imaging system was presented.The objects polygonization in 3D computer graphics was studied,and the 3D model of target satellites with distinct sizes and shapes were constructed by 3DMAX.Illumination models of the space target were established according to target structure.The energy of corresponding pixels was calculated by novel ray tracing algorithm.Based on the model,the characteristic simulation and presentation system of the space target and background were constructed by combining with the space environment,active characteristic of space target,and imaging model.The results indicate that this method can efficiently simulate the image of the space target and background for a space based optical imaging system.

关 键 词：空间目标 三维建模 光照模型 光学成像仿真 天基光学成像系统 

分 类 号：TN911.73[电子电信—通信与信息系统]