A complex experiment of measuring the average power of lidar echoes in a turbulent atmosphere

V. A. Banakh; A. L. Afanasiev; L. O. Gerasimova; E. V. Gordeev; I. V. Zaloznaya; V. V. Kuskov; D. A. Marakasov; I. A. Razenkov; V. V. Reyno; A. A. Sukharev; A. V. Falits; M. V. Sherstobitov; A. N. Shesternin

doi:10.1117/12.2503689

13 December 2018 A complex experiment of measuring the average power of lidar echoes in a turbulent atmosphere

V. A. Banakh, A. L. Afanasiev, L. O. Gerasimova, E. V. Gordeev, I. V. Zaloznaya, V. V. Kuskov, D. A. Marakasov, I. A. Razenkov, V. V. Reyno, A. A. Sukharev, A. V. Falits, M. V. Sherstobitov, A. N. Shesternin

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Proceedings Volume 10833, 24th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 108333M (2018) https://doi.org/10.1117/12.2503689
Event: XXIV International Symposium, Atmospheric and Ocean Optics, Atmospheric Physics, 2018, Tomsk, Russian Federation

Abstract

Data are presented about the variations in the average power of lidar echo signals with coherent and incoherent receiving over wide range of variations of the refractive turbulence strength in the atmosphere. It is established that in the case of incoherent receiving the backscatter amplification coefficient first increases with increase of the turbulence strength, then saturates at a certain level in the regime of strong turbulence on the probing path and decreases with further refractive turbulence strength increase. The maximum value of the amplification coefficient achievable at a given distance depends on the refractive turbulence strength at the moment of measurement. The time course of the backscattering amplification coefficient is in a good agreement with the temporal changes of the structural constant of turbulent fluctuations of the air refractive index, determined from independent measurements.

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V. A. Banakh, A. L. Afanasiev, L. O. Gerasimova, E. V. Gordeev, I. V. Zaloznaya, V. V. Kuskov, D. A. Marakasov, I. A. Razenkov, V. V. Reyno, A. A. Sukharev, A. V. Falits, M. V. Sherstobitov, and A. N. Shesternin "A complex experiment of measuring the average power of lidar echoes in a turbulent atmosphere", Proc. SPIE 10833, 24th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 108333M (13 December 2018); https://doi.org/10.1117/12.2503689

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KEYWORDS

Turbulence

LIDAR

Backscatter

Refractive index

Signal detection

Receivers

Atmospheric propagation

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