Measurement method of stabilization accuracy of electro-optical pod based on time/frequency domain analysis

XU Feifei; DU Yanlu; ZHENG Lei; JIANG Shizhou; GONG Quancheng; WANG Mingchao

doi:10.5768/JAO202243.0403001

Journal of Applied Optics > 2022 > 43(4): 693-700. > DOI: 10.5768/JAO202243.0403001

XU Feifei, DU Yanlu, ZHENG Lei, JIANG Shizhou, GONG Quancheng, WANG Mingchao. Measurement method of stabilization accuracy of electro-optical pod based on time/frequency domain analysis[J]. Journal of Applied Optics, 2022, 43(4): 693-700. DOI: 10.5768/JAO202243.0403001

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Measurement method of stabilization accuracy of electro-optical pod based on time/frequency domain analysis

Xi'an Institute of Applied Optics, Xi'an 710065, China

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Received Date: May 17, 2022
Revised Date: June 13, 2022
Available Online: June 15, 2022

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Abstract

Abstract

The stabilization accuracy is one of the key performance indicators of electro-optical pod, and the research on the measurement of line of sight stabilization accuracy is significant for the measurement and acceptance of electro-optical pod. Combined with coarse and fine platform stabilization of electro-optical system, a measurement method of stabilization accuracy based on time/frequency domain analysis was proposed. By collecting the data of inertial angular-rate sensor and optical compensation elements under random vibration environment, the angular rate, image jitter and probability distribution of image drift were obtained based on the signal time-domain analysis. Based on the signal frequency-domain analysis, the power spectral density of line of sight angular position signal was obtained. The frequency band stabilization accuracy contribution was proposed, which could evaluate the influence degree of different frequency bands on stabilization accuracy. The efficiency improvement with two-level stabilization was used to evaluate the improvement degree of two-level stabilization in different frequency bands on system stabilization performance. This method can intuitively reveal the image jitter and probability distribution, and give the frequency factors affecting the stabilization accuracy of line of sight, which has important engineering application value for guiding the design of electromechanical system.
- electro-optical pod,
- stabilization accuracy,
- time-domain analysis,
- frequency-domain analysis

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References

[1]	马经帅, 于洵, 刘晓宇, 等. 高精度光电跟踪系统中伺服稳定控制算法研究[J]. 应用光学,2021,42(4):597-607. doi: 10.5768/JAO202142.0401005 MA Jingshuai, YU Xun, LIU Xiaoyu, et al. Servo stabilization control algorithm in high-precision photoelectric tracking system[J]. Journal of Applied Optics,2021,42(4):597-607. doi: 10.5768/JAO202142.0401005
[2]	徐飞飞, 纪明, 解静, 等. FSM在高精度瞄准线稳定系统中的应用研究[J]. 应用光学,2012,33(1):9-13. XU Feifei, JI Ming, XIE Jing, et al. Application of FSM in high accuracy line-of-sight stabilization system[J]. Journal of Applied Optics,2012,33(1):9-13.
[3]	王震, 程雪岷. 快速反射镜研究现状及未来发展[J]. 应用光学,2019,40(3):373-379. doi: 10.5768/JAO201940.0301003 WANG Zhen, CHENG Xuemin. Research progress and development trend of fast steering mirror[J]. Journal of Applied Optics,2019,40(3):373-379. doi: 10.5768/JAO201940.0301003
[4]	王建, 陈剑, 赵树言, 等. 基于图像灰度的光电吊舱视轴稳定精度检测方法[J]. 电光与控制,2021,28(4):102-105. doi: 10.3969/j.issn.1671-637X.2021.04.022 WANG Jian, CHEN Jian, ZHAO Shuyan, et al. A method for detecting LOS stabilization accuracy of electro-optical pod based on grayscale of image[J]. Electronics Optics & Control,2021,28(4):102-105. doi: 10.3969/j.issn.1671-637X.2021.04.022
[5]	陈小军, 胡杰, 张瑜, 等. 瞄准线稳定精度试验方法研究[J]. 火力与指挥控制,2021,46(4):180-183. doi: 10.3969/j.issn.1002-0640.2021.04.034 CHEN Xiaojun, HU Jie, ZHANG Yu, et al. Research on test method for the stabilizing accuracy of the aiming line[J]. Fire Control & Command Control,2021,46(4):180-183. doi: 10.3969/j.issn.1002-0640.2021.04.034
[6]	徐晓睿, 曲正. 一种基于图像处理的光电平台稳定精度检测的方法: CN113237633A[P]. 2021-08-10. XU Xiaorui, QU Zheng. Photoelectric platform stability precision detection method based on image processing: CN113237633A[P]. 2021-08-10.
[7]	严少奇. 光电稳瞄系统关键性能检测方法研究[D]. 南京: 南京理工大学, 2014. YAN Shaoqi. Key performance detection method of optical stabilized sighting system[D]. Nanjing: Nanjing University of Science and Technology, 2014.
[8]	孟令东. 光电系统稳定精度测量方法研究[D]. 哈尔滨: 哈尔滨工程大学, 2008. MENG Lingdong. The research of the method for measuring O-E stabilized system stabilization accuracy[D]. Harbin: Harbin Engineering University, 2008.
[9]	杨帆. 机载光电成像跟踪系统动态稳定精度的测试方法研究[D]. 南京: 南京理工大学, 2016. YANG Fan. Research on the method for dynamic stabilization accuracy with airborne O-E stabilized system[D]. Nanjing: Nanjing University of Science and Technology, 2016.
[10]	陈浩, 向学辅, 曾刊, 等. 一种光电稳瞄系统稳定精度快速检测方法: CN110806307A[P]. 2020-02-18. CHEN Hao, XIANG Xuefu, ZENG Kan, et al. Method for rapidly detecting stabilization precision of electro-optical stabilized sighting system: CN110806307A[P]. 2020-02-18.
[11]	孙辉, 郎小龙, 李志强, 等. 动载体光电平台视轴稳定精度的检测[J]. 光学精密工程,2011,19(9):2131-2137. doi: 10.3788/OPE.20111909.2131 SUN Hui, LANG Xiaolong, LI Zhiqiang, et al. Measurement for LOS stabilization accuracy of electro-optical imaging system on moving carrier[J]. Optics and Precision Engineering,2011,19(9):2131-2137. doi: 10.3788/OPE.20111909.2131
[12]	王科伟, 王小怡, 王晶, 等. 光电跟踪系统稳定精度测试方法研究[J]. 应用光学,2015,36(1):77-81. doi: 10.5768/JAO201536.0103002 WANG Kewei, WANG Xiaoyi, WANG Jing, et al. Test method of stabilization accuracy in EO tracking system[J]. Journal of Applied Optics,2015,36(1):77-81. doi: 10.5768/JAO201536.0103002
[13]	段志姣, 王宇. 机载光电系统稳定精度测试方法研究[J]. 光学与光电技术,2008,6(3):53-56. doi: 10.3969/j.issn.1672-3392.2008.03.015 DUAN Zhijiao, WANG Yu. Study on measurement of dynamic stabilization precision of airborne electro-optical system[J]. Optics & Optoelectronic Technology,2008,6(3):53-56. doi: 10.3969/j.issn.1672-3392.2008.03.015
[14]	王惠林, 姜世洲, 徐飞飞, 等. 一种粗精组合二级稳定光电系统稳定精度的测量方法: CN112903246A[P]. 2021-06-04. WANG Huilin, JIANG Shizhou, XU Feifei, et al. Method for measuring stability precision of coarse-fine combined two-stage stable photoelectric system: CN112903246A [P]. 2021-06-04.
[15]	郑凤翥, 宁飞, 王培群, 等. 一种机载光电设备减振系统设计及稳定精度试验研究[J]. 应用光学,2018,39(4):453-459. ZHENG Fengzhu, NING Fei, WANG Peiqun, et al. Design of vibration damping system for airborne optoelectronic equipment and research on stability accuracy test[J]. Journal of Applied Optics,2018,39(4):453-459.

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Measurement method of stabilization accuracy of electro-optical pod based on time/frequency domain analysis