Theoretical analysis and verification of Ronchi grating auto-collimated focusing for aerial remote camera

Xue-ji LIU; Ya-lin DING; Feng LI; Zhi-chao CHEN; Guo-qin YUAN; Zhi-ming LIU

doi:10.3788/OPE.20202806.1236

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Theoretical analysis and verification of Ronchi grating auto-collimated focusing for aerial remote camera

更新时间：2020-07-13

- Theoretical analysis and verification of Ronchi grating auto-collimated focusing for aerial remote camera
- Optics and Precision Engineering Vol. 28, Issue 6, Pages: 1236-1244(2020)
- 作者机构：
  
  1.中国科学院长春光学精密机械与物理研究所中国科学院航空光学成像与测量重点实验室, 吉林长春 130033
  2.空军装备部驻长春地区军事代表室, 吉林长春 130033
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20202806.1236
  CLC： TH74;V241.01;V248.1
- Received：31 December 2019，
  
  Accepted：26 February 2020，
  
  Published：25 June 2020
- 稿件说明：
移动端阅览
Xue-ji LIU, Ya-lin DING, Feng LI, et al. Theoretical analysis and verification of Ronchi grating auto-collimated focusing for aerial remote camera[J]. Optics and precision engineering, 2020, 28(6): 1236-1244.
DOI：

Xue-ji LIU, Ya-lin DING, Feng LI, et al. Theoretical analysis and verification of Ronchi grating auto-collimated focusing for aerial remote camera[J]. Optics and precision engineering, 2020, 28(6): 1236-1244. DOI： 10.3788/OPE.20202806.1236.

摘要

为解决航空遥感相机检焦系统故障分析、元器件选型及提高检焦精度的问题，本文深入研究了基于Ronchi光栅的光电自准直检焦法。首先，归纳总结了国内外航空相机常用的几种检焦方法，对比了每种检焦方法的优缺点。接着，重点介绍了基于Ronchi光栅的光电自准直检焦系统的构成和工作原理，建立了数学模型，模拟了检焦系统在不同像面位置处的输出波形。然后，为衡量离焦程度，提出了离焦评价因子的概念，接着分析了光学系统的衍射效应和像差大小、Ronchi光栅的周期选择及检焦光源的能量分布这三种因素对检焦精度的影响，给出了Ronchi光栅周期的选择方法。最后，通过实验的方法对本文的仿真结果加以验证。实验结果表明：合焦波形的峰峰值占比0.82，对应0.05 mm步长下的平均检焦分辨力约为10%。

Abstract

To address issues such as auto-focusing system fault analysis and component selection

and to improve the focusing accuracy of aerial remote cameras

this article offered insights into the auto-collimated focusing technology based on the Ronchi grating.First

in this paper

several common focusing methods of both domestic and foreign aerial cameras were summarized and compared. Then

the composition and operating principle of optoelectronic auto-collimated focusing systems based on the Ronchi grating were introduced

the mathematical model was established

and the simulation curves of the focusing waveform with different imaging positions were presented. To measure the focal distances

the concept of the defocusing evaluation factor was proposed.Next

the three factors that affect the focusing accuracy of the diffraction effect and the aberration of the optical system

the period selection of the Ronchi grating

and the energy distribution of the light source were analyzed. The influence of the Ronchi grating period selection method was then presented. Finally

the experimental results verify the validity of the simulation results and show that the peak-to-peak ratio of the focusing waveform is 0.82

corresponding to an average focusing detection resolution of 10% at 0.05 mm.

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references

魏桂华, 肖亮, 郑志忠.推扫式高光谱相机自动调焦[J].光学精密工程, 2019, 27(2):450-457.

WEI G H, XIAO L, ZHENG ZH ZH. Auto-focusing method of push-broom hyperspectral camera[J]. Opt. Precision Eng ., 2019, 27(2):450-457. (in Chinese)

许兆林, 赵育良, 张国栋.新型航空相机自动调焦系统的设计[J].电光与控制, 2011, 18(4):77-80.

XU ZH L, ZHAO Y LI, ZHANG G D. Design of an auto focusing system for a new type of aerial camera[J]. Electronics Optics & Control, 2011, 18(4):77-80. (in Chinese)

王昊.航空可见光变焦距镜头自动调焦系统研究[D].长春: 中国科学院研究生院, 2015.

WANG H. The Research of Visible Aviation Zoom Auto Focus System [D]. Changchun: Graduate University of the Chinese Academy of Sciences, 2015. (in Chinese)

杨权, 刘晶红, 马晓飞.基于图像处理的机载光电平台自动调焦方法[J].液晶与显示, 2011, 26(5):677-682.

YANG Q, LIU J H, MA X F. Auto-focusing method based on image processing for airborne electro-optical imaging platform[J]. Chinese Journal of Liquid Crystals and Displays , 2011, 26(5):677-682. (in Chinese)

孟繁浩.基于图像处理的自动检焦技术在航空相机中的应用研究[D].长春: 中国科学院研究生院, 2016.

MENG F H. Study on the Application of Autofocus Technique Based on Image Processing Technology in Aerial Camera [D]. Changchun: Graduate University of the Chinese Academy of Sciences, 2016. (in Chinese)

郑丽娜, 李延伟, 远国勤, 等. Visibility的航空遥感相机自动焦面检测方法[J].红外与激光工程, 2019, 48(4):236-241.

ZHENG L N, LI Y W, YUAN G Q, et al .. Automatic focus plane detection of aerial remote camera based on Visibility[J]. Infrared and Laser Engineering, 2019, 48(4):236-241. (in Chinese)

曹智睿, 董吉洪.航天CCD相机焦面位置地面标定方法研究[J].应用光学, 2014, 35(5):830-834.

CAO ZH R, DONG J H. Terrestrial calibration method of focal plane position of space CCD camera[J]. Journal of Applied Optics , 2014, 35(5):830-834. (in Chinese)

李启辉, 丁亚林, 修吉宏, 等.一种基于图像处理的自准直检焦方法[J/OL].激光与光电子学进展: 1-12[2019-12-20] . http://kns.cnki.net/kcms/detail/31.1690.TN.20190709.0837.044.html http://kns.cnki.net/kcms/detail/31.1690.TN.20190709.0837.044.html .

LI Q H, DING Y L, XIU J H, et al .. A self-collimation focusing method based on image processing[J/OL]. Laser & Optoelectronics Progress : 1-12[2019-12-20]. http://kns.cnki.net/kcms/detail/31.1690.TN.20190709.0837.044.html http://kns.cnki.net/kcms/detail/31.1690.TN.20190709.0837.044.html . (in Chinese)

王德江, 李文明, 许永森, 等. TDI-CCD全景航空相机快速自动检调焦方法[J].光电子·激光, 2012, 23(8):1452-1457.

WANG D J, LI W M, XU Y S, et al .. A fast auto-focusing technique for the TDI-CCD panoramic aerial camera[J]. Journal of Optoelectronics·Laser, 2012, 23(8):1452-1457. (in Chinese)

陈志超.基于R-C系统的长焦距航空相机实时相位检焦技术研究[D].长春: 中国科学院研究生院, 2016.

CHEN ZH CH. Research on Real-Time Phase Detection Auto Focus Technique of Long Focus Airborne Camera Based on R-C Optical System [D]. Changchun: Gra duate University of the Chinese Academy of Sciences, 2016. (in Chinese)

朱鹤, 梁伟, 高晓东.航空相机光电自准直检调焦系统[J].光电工程, 2011, 38(3):35-39.

ZHU H, LIANG W, GAO X D. Autofocusing system with opto-electronic auto-collimation method for aerial camera[J]. Opto-Electronic Engineering , 2011, 38(3):35-39. (in Chinese)

WANG S J, ZHAO Y, LI S. Research of aerial camera focal pane micro-displacement measurement system based on Michelson interferometer[J]. International Symposium on Advanced Optical Manufacturing & Testing Technologies International Society for Optics and Photonics , 2014, 9282: B-1-7.

FORREST J W, STRAAT H W, DAKIN R K. Autocollimating spectrometer[J]. Journal of the Optical Society of America , 1955, 46:143-144.

陈升, 李常伟, 张思炯.基于Ronchi光栅Talbot效应的相位恢复[J].光学学报, 2018, 38(4):46-53.

CHEN SH, LI CH W, ZHANG S J. Phase retrieval based on Talbot effect of Ronchi grating[J]. Acta Optica Sinica , 2018, 38(4):46-53. (in Chinese)

贾海威.离焦模糊图像的点扩散函数估计及超分辨率重建技术研究[D].重庆: 重庆大学, 2018.

JIA H W. Research on Point Spread Function Estimation and Super-Resolution Reconstruction of Defocused Image [D]. Chongqing: Chongqing University, 2018. (in Chinese)

姜紫庆, 贾建军.空间相机透镜调焦机构的设计与测试[J].光学精密工程, 2018, 26(12):2956-2962.

JIANG Z Q, JIA J J. Development of focusing mechanism for space camera[J]. Opt. Precision Eng ., 2018, 26(12):2956-2962. (in Chinese)

郁道银, 谈恒英.工程光学[M].北京: 机械工业出版社, 2016.

YU D Y, TAN H Y. Engineering Optics [M].Beijing: China Machine Press, 2016.(in Chinese)

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