APT system for omni-directional laser communication based on image processing

Langzhou Mao; Jie Xiao; Xiaowei Wu; Wenhao Wang; Lei Yang

doi:10.1117/12.3005126

20 October 2023 APT system for omni-directional laser communication based on image processing

Langzhou Mao, Jie Xiao, Xiaowei Wu, Wenhao Wang, Lei Yang

Proceedings Volume 12916, Third International Conference on Signal Image Processing and Communication (ICSIPC 2023); 129161Y (2023) https://doi.org/10.1117/12.3005126
Event: Third International Conference on Signal Image Processing and Communication (ICSIPC 2023), 2023, Kunming, China

Abstract

In wireless laser communication systems, beam acquiring, pointing, and tracking (APT) technology is the key to establishing and maintaining a laser communication link. In order to solve the problem that the capture cameras used in APT systems usually have a small field of view and are inefficient in scanning the uncertain area and capturing the target spot, which leads to the inability to precisely locate the spot position, an image processing-based omnidirectional laser communication spot image detection technology solution is designed under the condition of using a large field of view of the capture camera, which has the characteristics of strong anti-interference capability and high detection accuracy. Firstly, the block design was simulated on matlab platform, and then the APT system of omnidirectional laser communication was built based on the panoramic camera with large field of view and two-dimensional turntable to verify the scheme. The scheme is implemented in 0.1° steps to sample the laser spot within 180° of the horizontal and tilt directions and obtain the spot coordinates. The spot position information is sent to the two-dimensional turntable through the serial port, and the 0.1° pointing of the turntable to the laser light source is accomplished, which verifies the feasibility and accuracy of the system solution.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Langzhou Mao, Jie Xiao, Xiaowei Wu, Wenhao Wang, and Lei Yang "APT system for omni-directional laser communication based on image processing", Proc. SPIE 12916, Third International Conference on Signal Image Processing and Communication (ICSIPC 2023), 129161Y (20 October 2023); https://doi.org/10.1117/12.3005126

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KEYWORDS

Image processing

Telecommunications

Laser communications

Cameras

Light sources

Image segmentation

Imaging systems

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