Dynamic resolution detection system design of CCD aerial camera
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摘要: 设计了一套CCD航空相机动态分辨率检测系统，系统入瞳直径D=200 mm，焦距f′=2 000 mm，视场角2ω=5°，利用光学设计软件Zemax进行仿真，设计结果表明，在奈奎斯特频率为40 lp/mm的情况下，调制传递函数曲线值均高于0.5。采用波差法校正由长焦距所引入的二级光谱，同时，引入分辨率尺的概念，将每一块单独的分辨率板采用拼接的方式制作成300 mm×24 mm的分辨率尺，令分辨率尺在电机的带动下作匀速直线运动来模拟动态目标。该测试系统的设计能够在模拟飞机飞行的状态下，对其动态分辨率进行检测，检测精度1″, 可广泛用于测绘、军事侦察和航空航天等领域。Abstract: A set of dynamic resolution detection system for CCD aerial camera was designed. The diameter of the entrance pupil is D=200 mm, the focal length is f′=2 000 mm, the angle of the field of view(FOV) is 2ω=5°. The system was simulated by Zemax optical design software, the design results show that, at the Nyquist frequency of 40 lp/mm, the modulation transfer function(MTF) curves are all above 0.5. The secondary spectra introduced by the long focal length were corrected through using the wave-deviation method. At the same time, the concept of resolution ruler was introduced, each separate resolution plate was made into a resolution ruler of 300 mm×24 mm by stitching, and the resolution ruler was driven by the motor to make a uniform linear motion to simulate the dynamic target.The design of the test system can detect the dynamic resolution of the aircraft under simulated flight conditions, the testing accuracy is 1″, and it can be widely used in mapping, military reconnaissance, aerospace and other fields.
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Keywords:
- CCD aerial camera /
- dynamic resolution /
- resolution ruler /
- secondary spectrum /
- optical system
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图 1 CCD航空相机动态分辨率检测原理图
Figure 1. Principle map of dynamic resolution detection for CCD aerial camera
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图 2 CCD航空相机动态分辨率检测装置图
Figure 2. Device map of dynamic resolution detection for CCD aerial camera
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[1] 陈莹.航空相机性能检测系统中综合测试系统的设计与实现[D].哈尔滨: 哈尔滨工业大学, 2007. CHEN Ying. Design and implementation of a comprehensive test system for the performance detection system of an aviation camera[D]. Harbin: Harbin Industry of Technology, 2007
[2] LEBERL F W, PERKO R, GRUBER M, et al. Novel concepts for aerial digital cameras[J]. International Archives of Photogrammetry Remote Sensing and Spatial Information Sciences, 2002, 34(1): 126-131.
[3] 付饶.航空相机地面景物模拟系统研究[D].长春: 长春理工大学, 2010. FU Yao. Research on ground scene simulation system of aerial camera[D]. Changchun: Changchun University of Science and Technology, 2010.
[4] 段洁, 段雨晗, 孙向阳等.全景航空相机性能检测系统设计[J].红外与激光工程, 2014, 43(12):3977-3982. doi: 10.3969/j.issn.1007-2276.2014.12.024 DUAN Jie, DUAN Yuhan, SUN Xiangyang, et al. Design of performance detection system for panoramic aerial camera[J].Infrared and Laser Engineering, 2014, 43 (12): 3977-3982. doi: 10.3969/j.issn.1007-2276.2014.12.024
[5] LELONG C C D, BURGER P, JUBELIN G, et al. Assessment of unmanned aerial vehicles imagery for quantitative monitoring of wheat crop in small plots[J]. Sensors, 2008, 8(5): 3557-3585. doi: 10.3390/s8053557
[6] FOWLER M J F. Archaeology through the keyhole: the serendipity effect of aerial reconnaissance revisited[J]. Interdisciplinary Science Reviews, 2004, 29(2): 118-134. https://www.researchgate.net/publication/200459088_Archaeology_through_the_keyhole_the_serendipity_effect_of_aerial_reconnaissance_revisited
[7] 国家机械工业局.中华人民共和国机械行业标准JB/T9328-1999分辨力板[M].北京: 机械工业出版社, 2005. National Machinery Industry Bureau.People's Republic of China mechanical industry standard JB/T9328-1999 resolution board[M]. Beijing: Machinery Industry Press, 2005.
[8] 苗兴华, 薛鸣球, 安葆青.长焦距平行光管: 中国, 99256104.3[P].1999-12-22. MIAO Xinghua, XUE Mingqiu, AN Baoqing. Long focus parallel light tube: China, 99256104.3[P]. 1999-12-22.
[9] 潘君骅.大相对口径大线视场光学系统的设计[J].中国工程科学, 2000, 8(2):89-90. http://d.old.wanfangdata.com.cn/Periodical/zggckx200008013 PAN Junhua. Design of optical system for large relative aperture large line field of view[J]. Engineering Science of China, 2000, 8 (2): 89-90. http://d.old.wanfangdata.com.cn/Periodical/zggckx200008013
[10] 吉小辉, 孙后环, 周必方, 等.大视场平行光管光学系统的研制[J].光学仪器, 2008, 30(1):55-58. doi: 10.3969/j.issn.1005-5630.2008.01.012 JI Xiaohui, SUN Houhuan, ZHOU Bifang, et al. Development of optical system of large field of view parallel light tube[J]. Optical Instrument, 2008, 30 (1): 55-58. doi: 10.3969/j.issn.1005-5630.2008.01.012
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