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Proceedings Paper

Research of high range resolution lidar system
Author(s): Qiao Wang; Xiao-ping Du; Ji-guang Zhao
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Paper Abstract

Lidar system often use pulse range method, phase detection (PD) range method and linear frequency modulation continues wave (LFM/CW) range method. Each method has its limit between range resolution and no fuzzy range. In this paper, a Lidar system with high range resolution in a long distance is designed by using LFM/CW range method cooperating with PD range method. A MCU is used to control the system working on LFM/CW range mode and PD range mode alternately. In which LFM/CW range mode is used to obtain an approximate target range with low resolution in long distance, and PD range mode is used to obtain a high resolution range value within one resolution of LFM/CW range mode. Then use the PD mode's range value to amend the range from LFM/CW method, and achieve high range resolution in long distance. This paper describes the system's principle. The simulation and experiment results in typical object situation prove the system could achieve high range resolution effectively.

Paper Details

Date Published: 22 August 2011
PDF: 6 pages
Proc. SPIE 8192, International Symposium on Photoelectronic Detection and Imaging 2011: Laser Sensing and Imaging; and Biological and Medical Applications of Photonics Sensing and Imaging, 81923R (22 August 2011); doi: 10.1117/12.901008
Show Author Affiliations
Qiao Wang, The Academy of Armored Forces Engineering (China)
Xiao-ping Du, The Academy of Armored Forces Engineering (China)
Ji-guang Zhao, The Academy of Armored Forces Engineering (China)


Published in SPIE Proceedings Vol. 8192:
International Symposium on Photoelectronic Detection and Imaging 2011: Laser Sensing and Imaging; and Biological and Medical Applications of Photonics Sensing and Imaging
Farzin Amzajerdian; Weibiao Chen; Chunqing Gao; Tianyu Xie, Editor(s)

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