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Proceedings Paper

Atmospheric-induced frequency fluctuations in LIDAR
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Paper Abstract

It is well known that the transmission of an optical signal through the turbulent atmosphere results in random phase fluctuations. In turn, these random phase fluctuations impart a random frequency fluctuation onto the optical signal. As laser radar (lidar) systems rely on the evaluation of micro-Doppler frequency shifts of the reflected optical wave to determine certain target characteristics, it is critical to understand the impact of the atmospheric induced frequency fluctuations. Additionally, lidar systems used for defense applications would typically operate in moderate to strong atmospheric turbulence conditions. Hence, for such applications, it is necessary to develop models describing atmospheric induced frequency fluctuations of an optical wave that are valid in all regimes of optical turbulence. In this paper, we present preliminary results for a model of atmospheric induced frequency fluctuations for the double pass propagation problem in weak optical turbulence conditions and a possible method for extension of these results into moderate to strong turbulence conditions.

Paper Details

Date Published: 8 September 2004
PDF: 11 pages
Proc. SPIE 5413, Laser Systems Technology II, (8 September 2004); doi: 10.1117/12.539517
Show Author Affiliations
Aaron J. Masino, Univ. of Central Florida (United States)
Cynthia Y. Young, Univ. of Central Florida (United States)

Published in SPIE Proceedings Vol. 5413:
Laser Systems Technology II
William E. Thompson; Richard L. Brunson, Editor(s)

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