Application of double threshold time discrimination based on amplifier type in laser ranging

Pingping Guo; Weixian Qian; Jinqing Yang; Qian Chen

doi:10.1117/12.2543507

18 December 2019 Application of double threshold time discrimination based on amplifier type in laser ranging

Pingping Guo, Weixian Qian, Jinqing Yang, Qian Chen

Proceedings Volume 11334, AOPC 2019: Optoelectronic Devices and Integration; and Terahertz Technology and Applications; 113340Q (2019) https://doi.org/10.1117/12.2543507
Event: Applied Optics and Photonics China (AOPC2019), 2019, Beijing, China

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.

Citation Download Citation

Pingping Guo, Weixian Qian, Jinqing Yang, and Qian Chen "Application of double threshold time discrimination based on amplifier type in laser ranging", Proc. SPIE 11334, AOPC 2019: Optoelectronic Devices and Integration; and Terahertz Technology and Applications, 113340Q (18 December 2019); https://doi.org/10.1117/12.2543507

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