17 February 2017 Monostatic and bistatic lidar systems: simulation to improve SNR and attainable range in daytime operations
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Abstract
Lidar daylight measurements are limited by sky background noise (BGN). Reducing the BGN is essential to improve Lidar signal-to-noise ratio (SNR). We report on an optimization technique to improve SNR in a monostatic/biaxial and bistatic Lidar systems by redesigning the geometrical scheme of Lidar receiver. A series of simulations to calculate the overlap area between both transmitter and receiver field of view (FOV) is conducted to determine optimal receiver aperture shapes, locations, and sizes within different lidar ranges. Techniques to vary receiver aperture shape, position, and size to accommodate backscattering signals over a given range, to maximize Lidar SNR, is introduced. At the same short range, numerical results show a better GF of the bistatic compared to the monostatic/biaxial configurations. A complete comparison between monostatic/biaxial and bistatic configurations, for low altitude measurements between 0.1km and 2km, is discussed.
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Ahmed Hassebo, Ahmed Hassebo, Balbina Salas, Balbina Salas, Yasser Y. Hassebo, Yasser Y. Hassebo, } "Monostatic and bistatic lidar systems: simulation to improve SNR and attainable range in daytime operations", Proc. SPIE 10094, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XVII, 1009421 (17 February 2017); doi: 10.1117/12.2253567; https://doi.org/10.1117/12.2253567
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