Signal interactions between lidar scanners

Gerald B. Popko; Thomas K. Gaylord; Christopher R. Valenta

doi:10.1117/12.2518228

2 May 2019 Signal interactions between lidar scanners

Gerald B. Popko, Thomas K. Gaylord, Christopher R. Valenta

Proceedings Volume 11005, Laser Radar Technology and Applications XXIV; 110050J (2019) https://doi.org/10.1117/12.2518228
Event: SPIE Defense + Commercial Sensing, 2019, Baltimore, MD, United States

Abstract

Signal interference between two light detection and ranging (lidar) scanners can occur when the transmitted laser energy from one lidar is scattered from a target and returned to a second lidar. By modeling lidar transmission paths via ray tracing, it is shown that signal interference can be modeled by the coincidence of intersection between two lidar transmission paths and a scattering target. The evaluation of experimental observation and an analytical framework of lidar signal interference is presented that compares results of a Monte Carlo simulation to interference observations from circularly scanning lidar sensors. The comparison between simulated and experimentally observed interference events suggests that lidar interference may largely explained by geometry and angular conditions. The model provides preliminary explanation as to the angular distribution of interference events and distinct transitions between occurrences of different interference modes. However, further radiometric refinement is likely needed to best explain the manifestation of some interference events.

Conference Presentation

Citation Download Citation

Gerald B. Popko, Thomas K. Gaylord, and Christopher R. Valenta "Signal interactions between lidar scanners", Proc. SPIE 11005, Laser Radar Technology and Applications XXIV, 110050J (2 May 2019); https://doi.org/10.1117/12.2518228

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