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Application of double threshold time discrimination based on amplifier type in laser ranging
Author(s): Pingping Guo; Weixian Qian; Jinqing Yang; Qian Chen
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Paper Abstract

The detection error of the laser ranging system determines its application and has always been one of the research hotspots in the field of laser ranging. In order to improve the resolution of the laser ranging system, this paper designs a laser receiving circuit with low noise and a double threshold time discrimination circuit from the perspective of reducing the ranging error. Firstly, based on the input noise of the laser receiving system, we select the appropriate transimpedance amplifier and secondary amplifier according to the noise characteristics of the optical receiving system. Then, based on the energy of the received echo signal, we derive the design formula of the double threshold circuit. Finally, we verify the designed double-threshold laser receiving circuit by experiments, and find that it can significantly reduce the detection error of the system.

Paper Details

Date Published: 18 December 2019
PDF: 6 pages
Proc. SPIE 11334, AOPC 2019: Optoelectronic Devices and Integration; and Terahertz Technology and Applications, 113340Q (18 December 2019); doi: 10.1117/12.2543507
Show Author Affiliations
Pingping Guo, Nanjing Univ. of Science and Technology (China)
Weixian Qian, Nanjing Univ. of Science and Technology (China)
Jinqing Yang, Nanjing Univ. of Science and Technology (China)
Qian Chen, Nanjing Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 11334:
AOPC 2019: Optoelectronic Devices and Integration; and Terahertz Technology and Applications
Zhiping Zhou; Xiao-Cong Yuan; Daoxin Dai, Editor(s)

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