Numerical study of the possibilities of wind sounding  in the atmospheric layer of 10-20 km by a coherent Doppler lidar from an aircraft

Igor N. Smalikho; Viktor A. Banakh

doi:10.1117/12.2689834

17 October 2023 Numerical study of the possibilities of wind sounding in the atmospheric layer of 10-20 km by a coherent Doppler lidar from an aircraft

Igor N. Smalikho, Viktor A. Banakh

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Proceedings Volume 12780, 29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 127802G (2023) https://doi.org/10.1117/12.2689834
Event: XXIX International Symposium "Atmospheric and Ocean Optics, Atmospheric Physics", 2023, Moscow, Russian Federation

Abstract

The possibilities of using molecular scattering to determine the wind speed from measurements by a pulsed coherent Doppler lidar (PCDL) from an aircraft at altitudes of 10-20 km are numerically studied. The simulation was carried out for probing radiation focused at 500 m at wavelengths of 1 μm and 2 μm, the aperture diameter of the receiving-transmitting telescope was set equal to 10 cm. It is shown that in measurements from an aircraft, in order to exceed the threshold value of the signal-to-noise ratio, the energy in the pulse is much lower than when sounding from the Earth. Modern PCDLs with probing pulse energies of 1–4 mJ, after adding a molecular scattering recording channel, can be used for airborne wind measurements at altitudes of 10–20 km.

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Igor N. Smalikho and Viktor A. Banakh "Numerical study of the possibilities of wind sounding in the atmospheric layer of 10-20 km by a coherent Doppler lidar from an aircraft", Proc. SPIE 12780, 29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 127802G (17 October 2023); https://doi.org/10.1117/12.2689834

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KEYWORDS

Signal to noise ratio

LIDAR

Wind speed

Pulse signals

Doppler effect

Scattering

Wind measurement

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