考虑杂散光影响的天基光学观测图像仿真算法  

Simulation Algorithm for Space-Based Optical Observation Images Considering Influence of Stray Light

作　　者：王玉朋 牛照东[1] 王东亚[2] 黄剑 李朋远[2] 孙权[1] Wang Yupeng;Niu Zhaodong;Wang Dongya;Huang Jian;Li Pengyuan;Sun Quan(National Key Laboratory of Science and Technology on ATR,National University of Defense Technology,Changsha,Hunan 410073,China;Beijing Institute of Tracking and Telecommunications Technology,Beijing 100094,China)

机构地区：[1]国防科技大学精确制导自动目标识别国防科技重点实验室,湖南长沙410073 [2]北京跟踪与通信技术研究所,北京100094

出　　处：《激光与光电子学进展》2022年第2期486-493,共8页Laser & Optoelectronics Progress

基　　金：国家自然科学基金青年科学基金(61605243)。

摘　　要：针对天基光学观测过程中存在杂散光干扰成像的问题,提出一种受杂散光影响的天基光学观测图像的仿真算法。首先通过分析天基光学观测图像的成像原理来设计天基光学观测图像的仿真流程,并给出各流程的计算方法。接着分析地气光干扰成像的原理,建立地气光成像仿真的数学模型,采用微元法实现地气光的成像仿真。最后阐述月光干扰成像的原理,建立月光成像仿真的数学模型,采用扩展截取法实现月光的成像仿真。仿真结果表明,采用所提算法仿真图像,图像的逼真度较高,而且较真实地实现杂散光的成像仿真,并且通过相关文献证明所提算法的正确性与合理性。Aiming at the problem that stray light interferes with imaging in the process of space-based optical observation,a simulation algorithm of space-based optical observation images affected by stray light is proposed.First,by analyzing the imaging principle of the space-based optical observation image,the simulation process of the space-based optical observation image is designed and the calculation method corresponding to each process is provided.Next,the principle of ground-air-light interference imaging is examined,a mathematical model of groundair-light imaging simulation is established,and the microelement method is used to realize ground-air-light imaging simulation.Finally,the principle of moonlight interference imaging is described,the mathematical model of moonlight imaging simulation is established,and the moonlight imaging simulation is realized using the extended intercept method.The results obtained from the simulation show that the image fidelity is high when the proposed algorithm is used to simulate the image,and the imaging simulation of stray light is more realistically realized.The accuracy and rationality of the proposed algorithm are demonstrated through relevant documents.

关 键 词：散射 杂散光 成像方法 仿真流程 微元法 扩展截取法 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]