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Proceedings Paper

Optimization of Doppler lidar system parameters for the measurement of atmospheric wind speed
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Paper Abstract

One of the main functions of a Doppler Lidar system is to measure the atmospheric wind speed and direction. It is done by measuring the Doppler shift in frequency of the backscattered laser beam. A frequency stabilized Nd: YAG laser source operating at its fundamental wavelength of 1064 nm will be used in the proposed incoherent detection system. Edge technique is employed along with a high-resolution optical filter in this system to achieve high accuracy in the measurement of wind velocity. The performance of Doppler lidar system is estimated with realistic parameters. Analysis of the uncertainty in wind measurement is made by considering factors like lidar return signal levels, laser spectral width, etalon filter pass band (FWHM) etc. An accuracy of 0.25 m/s has been achieved in the wind speed up to an altitude of 5 km with 15-m range resolution in the proposed ground based Doppler Lidar system.

Paper Details

Date Published: 30 November 2006
PDF: 7 pages
Proc. SPIE 6409, Lidar Remote Sensing for Environmental Monitoring VII, 64090I (30 November 2006); doi: 10.1117/12.696877
Show Author Affiliations
Deepak Kumar Dubey, Laser Science and Technology Ctr. (India)
S. Veerabuthiran, Laser Science and Technology Ctr. (India)
Jai Paul Dudeja, Laser Science and Technology Ctr. (India)
Mukesh Kumar Jindal, Laser Science and Technology Ctr. (India)

Published in SPIE Proceedings Vol. 6409:
Lidar Remote Sensing for Environmental Monitoring VII
Upendra N. Singh; Toshikazu Itabe; D. Narayana Rao, Editor(s)

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