双线阵测绘相机视轴抖动实时测量

翟国芳; 于庆盛; 王蕴龙; 高卫军

doi:10.37188/CO-2022-0175

Volume 16 Issue 4

Jul. 2023

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Article Contents

Chinese Optics > 2023 > 16(4): 878-888.

ZHAI Guo-fang, YU Qing-sheng, WANG Yun-long, GAO Wei-jun. Real-time measurement for boresight vibration of dual line array surveying and mapping cameras[J]. Chinese Optics, 2023, 16(4): 878-888. doi: 10.37188/CO-2022-0175

Citation:

ZHAI Guo-fang, YU Qing-sheng, WANG Yun-long, GAO Wei-jun. Real-time measurement for boresight vibration of dual line array surveying and mapping cameras[J]. Chinese Optics, 2023, 16(4): 878-888. doi: 10.37188/CO-2022-0175

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Real-time measurement for boresight vibration of dual line array surveying and mapping cameras

doi: 10.37188/CO-2022-0175

Beijing Institute of Space Mechanics and Electricity, Beijing 100094, China

Funds: Supported by National Key Research and Development Program of China (No. 2016YFB0500802)

More Information

Corresponding author: zhaigf044@126.com
Received Date: 02 Aug 2022
Rev Recd Date: 26 Aug 2022
Accepted Date: 02 Nov 2022

Available Online: 05 May 2023

Abstract

Abstract

In order to realize the real-time measurement of the boresight vibration of the dual line array surveying and mapping camera, a measurement model of the optical axis of the aerospace line array surveying and mapping camera is established. First, by setting up laser transceivers at both ends of the focal plane of the camera, through the central prism correlation, an angle parameter change measurement model for the two cameras is constructed. An optical axis measurement method for multi-line array cameras based on the dual-vector attitude determination principle is proposed. The calculation expression is given and the algorithm error is analyzed, which is verified by simulation. In addition, the residuals of the two algorithms are simulated and the results show that the simplified algorithm is only in good agreement with the dual vector algorithm in a small measurement range but when the detection range is expanded to 2 seconds, the algorithm in this article can be used to obtain 0.1 arc-second. Finally, the algorithm was tested and verified in a thermal vacuum environment, which verified that the calibration accuracy of the internal and external parameters of the camera using this algorithm reached 0.1 arc-second. The results showed that the angle parameters of the two cameras exhibited the periodicity of the orbit, which provided good conditions for the subsequent development of stereo surveying and mapping tasks.
- optical axis measurement,
- Dual Vector Attitude Determination(DVAD),
- centroiding extraction accuracy,
- thermal vacuum environment

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References(20)

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