Measurement of integrated speckle statistics for CO{sub 2} lidar returns from a moving, nonuniform, hard target
- Los Alamos National Laboratory, Applied Theoretical Physics Division, Mail Stop E543, Los Alamos, New Mexico 87545 (United States)
A pulsed, dual CO{sub 2} laser lidar was used to measure return signal statistics as a function of the number of speckles integrated by the lidar receiver per laser pulse. A rotating target generated statistically independent speckle patterns on each laser pulse. Data were collected for a wide range of receiver aperture sizes. A statistical model is developed that predicts the probability density of the return lidar pulse energy, which includes speckle, depolarization by the target, and albedo sampling. The predictions of this model are compared with the measured probability density function of the return pulse energies. Very good agreement is found between the geometrically calculated number of integrated speckles and the number predicted by the model. {copyright} 1997 Optical Society of America
- Research Organization:
- Los Alamos National Laboratory
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 552922
- Journal Information:
- Applied Optics, Journal Name: Applied Optics Journal Issue: 27 Vol. 36; ISSN 0003-6935; ISSN APOPAI
- Country of Publication:
- United States
- Language:
- English
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