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

Deepak Kumar Dubey; S. Veerabuthiran; Jai Paul Dudeja; Mukesh Kumar Jindal

doi:10.1117/12.696877

30 November 2006 Optimization of Doppler lidar system parameters for the measurement of atmospheric wind speed

Deepak Kumar Dubey, S. Veerabuthiran, Jai Paul Dudeja, Mukesh Kumar Jindal

Proceedings Volume 6409, Lidar Remote Sensing for Environmental Monitoring VII; 64090I (2006) https://doi.org/10.1117/12.696877
Event: SPIE Asia-Pacific Remote Sensing, 2006, Goa, India

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.

Citation Download Citation

Deepak Kumar Dubey, S. Veerabuthiran, Jai Paul Dudeja, and Mukesh Kumar Jindal "Optimization of Doppler lidar system parameters for the measurement of atmospheric wind speed", Proc. SPIE 6409, Lidar Remote Sensing for Environmental Monitoring VII, 64090I (30 November 2006); https://doi.org/10.1117/12.696877

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