Research on high-precision signal delay generator for range-gated imaging lidar

Lanjun Sun; Shiyou Fu; Yanchao Zhang; Zhao Zhao; Libao Liu

doi:10.1117/12.2631816

14 April 2022 Research on high-precision signal delay generator for range-gated imaging lidar

Lanjun Sun, Shiyou Fu, Yanchao Zhang, Zhao Zhao, Libao Liu

Proceedings Volume 12178, International Conference on Signal Processing and Communication Technology (SPCT 2021); 1217809 (2022) https://doi.org/10.1117/12.2631816
Event: International Conference on Signal Processing and Communication Technology (SPCT 2021), 2021, Tianjin, China

Abstract

In this paper, a low-cost signal delay generator which can be used for lidar range gating is developed and implemented by MC100EP195 delay chip and STM32 microcomputer. LabVIEW is used to write the upper computer control software, and 4 delay chips cascade is adopted to realize 0-40ns delay range. By controlling the encoder and the upper computer, the delay accuracy of 10ps can be obtained. The inherent delay of the generator is 10ns, which can meet the requirements of lidar range gated detection and other high precision applications.

Citation Download Citation

Lanjun Sun, Shiyou Fu, Yanchao Zhang, Zhao Zhao, and Libao Liu "Research on high-precision signal delay generator for range-gated imaging lidar", Proc. SPIE 12178, International Conference on Signal Processing and Communication Technology (SPCT 2021), 1217809 (14 April 2022); https://doi.org/10.1117/12.2631816

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