Abstract

Within the framework of a feasibility study of remote cross-wind velocity measurements by means of laser Doppler anemometry (LDA), a study was made of the atmospheric fluctuation effects on an optical interference fringe system generated over a distance of 500 m. Variations of the fringe visibility and spacing have been recorded simultaneously. In order to characterize the optical turbulence of the atmosphere during the measurements, an optical scintillometer was used. Provided the atmospheric extinction is low enough, the measured results show that, even under weather conditions which are very unfavorable to the propagation of laser beams, the interference fringe pattern generated is of sufficient quality for LDA measurements.

© 1980 Optical Society of America

Laser-Doppler measurement of crosswind velocity

F. Durst, B. M. Howe, and G. Richter
Appl. Opt. 21(14) 2596-2607 (1982)

Dual-frequency Doppler-lidar method of wind measurement

Wynn L. Eberhard and Richard M. Schotland
Appl. Opt. 19(17) 2967-2976 (1980)

Effect of the log-amplitude covariance function on the statistics of speckle propagation through the turbulent atmosphere

J. Fred Holmes, Myung Hun Lee, and J. Richard Kerr
J. Opt. Soc. Am. 70(4) 355-360 (1980)

Beam properties of partially coherent curved beam waves in the turbulent atmosphere

J. Carl Leader
J. Opt. Soc. Am. 70(6) 682-688 (1980)

Effects of atmospheric turbulence on the laser cross-beam velocimeter

L. S. Wall
J. Opt. Soc. Am. 64(7) 1005-1008 (1974)