R. Frehlich et al., PERFORMANCE OF A 2-MU-M COHERENT DOPPLER LIDAR FOR WIND MEASUREMENTS, Journal of atmospheric and oceanic technology, 11(6), 1994, pp. 1517-1528
Measurements of boundary layer winds are presented using a 2-mu m cohe
rent Doppler lidar and the optimal performance of the maximum likeliho
od estimator The systematic error for single-shot estimates was estima
ted as 3.6 cm s(-1) using measurements from a stationary hard target.
The estimation error for measurements of the radial component of the w
ind field was determined, as well as the fraction of the estimates tha
t are randomly distributed over the velocity search space, when the si
gnal power is low and speckle fading is important. The results from ac
tual data are compared with the results from ideal simulations. The fi
rst direct estimation of the spatial structure function of the radial
wind field and of the energy dissipation rate is presented for both ho
rizontal and vertical directions of propagation. The rms estimation er
ror of the velocity estimates is found to be within 30% of ideal perfo
rmance based on simulation.