| 航空稳像光电平台设计 |
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| 引用本文： | 钱义先,梁伟,高晓东. 航空稳像光电平台设计[J]. 光子学报, 2009, 38(8) |
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| 作者姓名： | 钱义先 梁伟 高晓东 |
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| 作者单位： | 中国科学院光电技术研究所,成都,610209;中国科学院研究生院,北京,100049;中国科学院光电技术研究所,成都,610209 |
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| 摘 要： | 分析了随机振动对调制传递函数的影响,指出角位移是影响航空成像质量的主要因素.研究了特定条件下可容许的MTF下降,并转变为稳定系统的设计参量,用来指导稳像系统的设计.利用空间机构学及平行四边形平动原理,研制了一种新的无角位移减振稳像平台,满足既无角位移又达到减振要求.根据设计理论给出了设计实例,对频率高于100 HZ的振动,衰减达34dB,并利用动力学软件进行测试仿真,仿真曲线验证无角位移减振的正确性,同时对无角位移机构进行光学测试,结果耦合角度小于8″,可以满足航空成像要求.
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| 关 键 词： | 调制传递函数 航空相机 振动 光电平台 角位移 稳像 |
Design of Optoelectronic Platform for stable image on Airborne Reconnaissance |
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| QIAN Yi-xian,LIANG Wei,GAO Xiao-dong. Design of Optoelectronic Platform for stable image on Airborne Reconnaissance[J]. Acta Photonica Sinica, 2009, 38(8) |
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| Authors: | QIAN Yi-xian LIANG Wei GAO Xiao-dong |
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| Affiliation: | 1 Institute of Optics and Electronics;Chinese Academy of Sciences;Chengdu 610209;China;2 Graduate School of the Chinese Academy of Sciences;Beijing 100039;China |
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| Abstract: | Modulation transfer function(MTF)resulting from random vibration was analyzed.The effect angular displacement was regarded as major factor to affect the image of aerial camera.Allowable MTF degradation was represented,and allowable MTF degradation was converted into stable system design parameters.The parameters can guide perfect design for stabilization system.Based on the spatial mechanism and translational principle of parallelogram,an irrotational displacement isolator was developed,which can meet the r... |
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| Keywords: | Modulation transfer function Aerial camera Vibration Photoelectric platform Angular displacement Image stabilization |
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