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Statistical Analysis of the Potential of a Bathymetric Lidar with Time-of-Flight Matrix Spad Photodetector

  • A. I. PotekaevEmail author
  • A. A. Lisenko
  • V. S. Shamanaev
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The Monte Carlo method is used to solve the nonstationary laser sensing equation for a multicomponent optically dense water medium taking into account the influence of the water-air interface and the contributions of multiple radiation scattering by sea water and of the signal reflection from the sea bottom. Dependences of the signal power recorded with a monostatic lidar equipped with a time-of-flight matrix single-photon avalanche diode (SPAD) photodetector on the water depth and surface microwaves for different field-of-view angles of the receiver are obtained. Results of investigations have shown that the maximum depth of sea bottom detection is 40–50 m given that the optical water thickness does not exceed 3.5–4 m. The dynamic range of lidar signals from water reaches 7–9 orders of magnitude for lidar sensing of sea bottom at limiting depths of 40–50 m in very transparent water in the presence of the Fresnel reflection from the water surface. Results of statistical simulation have shown that the lidar system with the matrix receiver intended for sea water sensing can be realized at the modern technical level. Under favorable conditions, the lidar return signal power provides sensing of sea bottom to depths of 40–50 m.

Keywords

lidar ocean optics multiple radiation scattering depth of sea bottom 

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© Springer Science+Business Media, LLC, part of Springer Nature 2020

Authors and Affiliations

  • A. I. Potekaev
    • 1
    • 2
    Email author
  • A. A. Lisenko
    • 3
  • V. S. Shamanaev
    • 3
  1. 1.V. D. Kuznetsov Siberian Physical-Technical Institute at National Research Tomsk State UniversityTomskRussia
  2. 2.National Research Tomsk State UniversityTomskRussia
  3. 3.V. E. Zuev Institute of Atmospheric Optics of the Siberian Branch of the Russian Academy of SciencesTomskRussia

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