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题名:
A method to improve the precision of measuring focusing system
作者: Xu, Xiaoliang1,2,3; An, Tao1,2; Chen, Ke1,2
出版日期: 2015
会议名称: Proceedings of SPIE - The International Society for Optical Engineering
会议日期: 2015
学科分类: Error compensation - Telescopes
DOI: 10.1117/12.2197234
中文摘要: Most of the telescope focusing systems adopt the measuring distance method to focus the quick-moving target because the imaging position of moving target is constantly changing. The focusing system calculates the focal position, controls the motor according to the distance of the target. This focusing method has a faster focusing and a better real-time performance compared to the image focusing method based on the image quality. But restricted by the external environment, the precision of instruments and technical level, Distance measuring focus system(DMFS) generally have low precision, higher dynamic adjusting delay problem. This paper mainly analyses the main error sources affecting the accuracy of DMFS, aiming at the existing defects of commonly used current speed compensation method, put forward a kind of solution path delay lag method predicted method measuring focusing system, and then simulate it, the result shows that this method can greatly improve the precision of DMFS. © 2015 SPIE.
英文摘要: Most of the telescope focusing systems adopt the measuring distance method to focus the quick-moving target because the imaging position of moving target is constantly changing. The focusing system calculates the focal position, controls the motor according to the distance of the target. This focusing method has a faster focusing and a better real-time performance compared to the image focusing method based on the image quality. But restricted by the external environment, the precision of instruments and technical level, Distance measuring focus system(DMFS) generally have low precision, higher dynamic adjusting delay problem. This paper mainly analyses the main error sources affecting the accuracy of DMFS, aiming at the existing defects of commonly used current speed compensation method, put forward a kind of solution path delay lag method predicted method measuring focusing system, and then simulate it, the result shows that this method can greatly improve the precision of DMFS. © 2015 SPIE.
收录类别: Ei
语种: 英语
卷号: 9678
ISSN号: 0277-786X
文章类型: 会议论文
Citation statistics:
内容类型: 会议论文
URI标识: http://ir.ioe.ac.cn/handle/181551/7428
Appears in Collections:光电工程总体研究室(一室)_会议论文

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作者单位: 1. Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, Sichuan, China
2. Key Laboratory of Optical Engineering, Chinese Academy of Sciences, Chengdu, Sichuan, China
3. University of Chinese Academy of Sciences, Beijing, China

Recommended Citation:
Xu, Xiaoliang,An, Tao,Chen, Ke. A method to improve the precision of measuring focusing system[C]. 见:Proceedings of SPIE - The International Society for Optical Engineering. 2015.
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