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Proceedings Paper

Comparison of performance capabilities of spread spectrum coherent and direct detection CO2 DIAL systems and associated hardware fielding implications
Author(s): Victor H. Hasson; Gordon L. Dryden
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Paper Abstract

This paper reviews the performance of a conventional direct detection CO2 Differential Absorption Lidar (DIAL) system with the coherent spread spectrum approach developed, validated and patented by Textron. The analysis shows that the coherent approach is far superior in terms of maximum attainable standoff range at a specified transmitter average power and substantially reduced system power and associated size and weight at a predetermined range. The requirements on local oscillator stability are fairly relaxed and the spread spectrum/coherent DIAL concept is fairly easy to implement. Performance parameter maps are presented for ground-based, low-altitude and high-altitude airborne systems with a range of aperture sizes and pulse formats.

Paper Details

Date Published: 29 July 2002
PDF: 10 pages
Proc. SPIE 4723, Laser Radar Technology and Applications VII, (29 July 2002); doi: 10.1117/12.476408
Show Author Affiliations
Victor H. Hasson, Textron Systems Corp. (United States)
Gordon L. Dryden, Textron Systems Corp. (United States)

Published in SPIE Proceedings Vol. 4723:
Laser Radar Technology and Applications VII
Gary W. Kamerman, Editor(s)

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