微振动对空间光电载荷成像影响分析与验证  

Analysis and Verification of Effect of Micro-Vibration on Space Photoelectric Payload Imaging

作　　者：石进峰[1] 成鹏飞[1] 袁灏[1] 任国瑞[1,2] 王炜 樊学武[1] 李治国[3] Shi Jinfeng;Cheng Pengfei;Yuan Hao;Ren Guorui;Wang Wei;Fan Xuewu;Li Zhiguo(The Space Optical Technology Research Department, Xi 'an Institute of Optics and Precision Mechanics,Chinese Academy of Sciences, Xi 'an, Shaanxi 710119, China;University of Chinese Academy of Sciences, Beijing 100049, China;The Photoelectric Measurement and Control Technology Research Department, Xi 'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi 'an , Shaanxi 710119, China)

机构地区：[1]中国科学院西安光学精密机械研究所空间光学应用研究室,陕西西安710119 [2]中国科学院大学,北京100049 [3]中国科学院西安光学精密机械研究所光电测控技术研究室,陕西西安710119

出　　处：《光学学报》2019年第5期269-275,共7页Acta Optica Sinica

基　　金：国家重大工程、西部之光青年学者(XAB2016B24)

摘　　要：基于最小二乘法,利用面积加权的平均运动推导出了光学元件的表面平均刚体运动方程。基于微振动进行了光学系统调制传递函数(MTF)的影响分析,计算了相应的像移量及对应的系统光轴偏转角。利用刚体运动方程对频率响应分析数据进行了处理。根据系统光轴偏转角要求反推了光电载荷安装面的微振动量级要求。通过定频微振动实验实时测试了系统MTF。结果表明,分析结果与测试数据的误差均在20%以内,满足工程应用的要求,并验证了该计算方法的正确性。Based on the least square method, the average surface rigid-body motion equation of optical elements is derived herein using the area-weighted average motion. By analyzing the effect of micro-vibration on the modulation transfer function (MTF) of an optical system, the relevant image motion and its corresponding optical axis rotation angle are determined. The data process for the frequency response analysis is performed using the average rigid-body motion equations. The micro-vibration magnitude of the photoelectric payload mounting surface is retrieved based on the demands of optical axis rotation angles of the system. The real-time MTF testing of the system is performed using the constant-frequency micro-vibration test. The results show that the error discrepancy between the analysis results and the test data is within 20%, which meets the requirements for engineering applications and verifies the correctness of the computational method.

关 键 词：光计算 光机集成 微振动 表面刚体运动 调制传递函数 空间光电载荷 

分 类 号：V416.5[航空宇航科学与技术—航空宇航推进理论与工程]