Multiple-beam lidar detection technology

Chao Li; Ning Chen; Hang Zhao; Tiancheng Yu

doi:10.1117/12.2617916

15 February 2022 Multiple-beam lidar detection technology

Chao Li, Ning Chen, Hang Zhao, Tiancheng Yu

Proceedings Volume 12166, Seventh Asia Pacific Conference on Optics Manufacture and 2021 International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2021); 1216672 (2022) https://doi.org/10.1117/12.2617916
Event: Seventh Asia Pacific Conference on Optics Manufacture and 2021 International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2021), 2021, Hong Kong, Hong Kong

Abstract

As an important measure of space detection, lidar has the advantages of high detection accuracy, small volume and low power consumption, and strong anti-electromagnetic interference ability. It has been widely used in airborne and spaceborne platforms to carry out topographical mapping, environmental monitoring, target recognition, rendezvous and docking, etc. Traditional lidar systems have the problems of slow imaging rate and low utilization rate of laser energy when detecting the long-distance small targets. This paper proposes the use of diffractive optics-based laser beam splitting technology to increase the instantaneous field of view. In addition, in order to overcome the contradiction between the scanning field of view and the scanning accuracy of the traditional two-dimensional pendulum mirror, an double optical wedge scanning method is proposed and its scanning pattern is analyzed.

Citation Download Citation

Chao Li, Ning Chen, Hang Zhao, and Tiancheng Yu "Multiple-beam lidar detection technology", Proc. SPIE 12166, Seventh Asia Pacific Conference on Optics Manufacture and 2021 International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2021), 1216672 (15 February 2022); https://doi.org/10.1117/12.2617916

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KEYWORDS

LIDAR

Beam splitters

Diffraction gratings

Target detection

Double patterning technology

3D acquisition

Diffraction

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