Measurement of wind velocity spread: signal-to-noise ratio for heterodyne detection of laser backscatter from aerosol

David L. Fried; Roque K. Szeto

doi:10.1117/12.43722

1 August 1991 Measurement of wind velocity spread: signal-to-noise ratio for heterodyne detection of laser backscatter from aerosol

David L. Fried, Roque K. Szeto

Author Affiliations +

Proceedings Volume 1416, Laser Radar VI; (1991) https://doi.org/10.1117/12.43722
Event: Optics, Electro-Optics, and Laser Applications in Science and Engineering, 1991, Los Angeles, CA, United States

Abstract

To determine the local variability of the turbulence induced spread in wind velocity in a small and inaccessible region, an analysis of the expected performance of a CW, heterodyne detection, 10 microns wavelength laser radar is conducted. At this wavelength practically all of the backscatter signal power is due to scattering from aerosol particles. As these particles move with the wind velocity the Doppler shift they impart to the backscattered laser radiation will be indicative of the wind velocity.

Citation Download Citation

David L. Fried and Roque K. Szeto "Measurement of wind velocity spread: signal-to-noise ratio for heterodyne detection of laser backscatter from aerosol", Proc. SPIE 1416, Laser Radar VI, (1 August 1991); https://doi.org/10.1117/12.43722

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