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Proceedings Paper

Design of a direct-detection Doppler wind lidar for spaceflight
Author(s): Jack A. McKay; David J. Rees
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Paper Abstract

Atmospheric wind speed profiling from an Earth-orbiting satellite with an active lidar probe is considered. 'Direct detection' of the Doppler shift, i.e., with optical interferometry, can employ the UV, and thus can be based on Rayleigh backscatter, permitting measurements without dependence on atmospheric aerosol content. Two direct detection methods, 'edge technique' and 'fringe imaging', are compared here for measurement sensitivity in the signal shot noise limit. There is no significant difference; both are capable, at best, of measurement statistical uncertainty about 2 to 4 times the Cramer-Rao limit of a perfect, lossless receiver.

Paper Details

Date Published: 7 December 1998
PDF: 9 pages
Proc. SPIE 3494, Atmospheric Propagation, Adaptive Systems, and Lidar Techniques for Remote Sensing II, (7 December 1998); doi: 10.1117/12.332427
Show Author Affiliations
Jack A. McKay, Remote Sensor Concepts (United States)
David J. Rees, Hovemere, Ltd. (United States)


Published in SPIE Proceedings Vol. 3494:
Atmospheric Propagation, Adaptive Systems, and Lidar Techniques for Remote Sensing II
Adam D. Devir; Anton Kohle; Ulrich Schreiber; Christian Werner, Editor(s)

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