Abstract
In the weak signal regime coherent Doppler lidar velocity estimates are
characterized by a localized distribution around the true mean velocity and a
uniform distribution of random outliers over the velocity search space. The
performance of velocity estimators is defined by the standard deviation of the
good estimates around the true mean velocity and the fraction of random
outliers. The quality of velocity estimates is improved with pulse
accumulation. The performance of velocity estimates from two different coherent
Doppler lidars in the weak signal regime is compared with the predictions of
computer simulations for pulse accumulation from 1 to 100
pulses.
© 1997 Optical Society of America
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