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Proceedings Paper

Simultaneous characterization of propagation within the marine boundary layer at X-, Ka- and W-band
Author(s): Helmut Essen; Hans-Hellmuth Fuchs; Joerg Foerster
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Paper Abstract

The performance of radar sensors operating within the marine boundary layer is severely influenced by the actual atmospheric conditions, the sea surface and the geometry between radar and reflection point. Propagation models are in existence, which cope with the varying environment and allow a performance prediction for sensors in different radar bands. To assess the propagation within different layers simultaneously at X-, Ka- and W-band an experiment was performed using the experimental three frequency radar MEMPHIS operating against point targets at different heights above sea, carried on a naval vessel, which moved on outbound and inbound courses to ranges well beyond horizon. In-situ measurements included recordings of atmospheric properties and sea surface parameters. Based upon the environmental measurements, refractivity profiles were calculated. With the help of the vertical refractivity gradient and the air sea temperature difference, conditions for the radar propagation were determined. The experimental results were used to validate respective simulations with the parabolic equation model TERPEM. In conclusion, the experimental results and calculations underline the importance of the environmental characterization of the marine boundary layer with high temporal and spatial resolution. This paper describes the experimental approach and gives representative results for measurement and simulation.

Paper Details

Date Published: 11 November 2004
PDF: 6 pages
Proc. SPIE 5572, Optics in Atmospheric Propagation and Adaptive Systems VII, (11 November 2004); doi: 10.1117/12.556813
Show Author Affiliations
Helmut Essen, FGAN Research Institute for High Frequency Physics and Radar Techniques (Germany)
Hans-Hellmuth Fuchs, FGAN Research Institute for High Frequency Physics and Radar Techniques (Germany)
Joerg Foerster, Federal Armed Forces Underwater Acoustics and Marine Geophysics Research Institute (Germany)


Published in SPIE Proceedings Vol. 5572:
Optics in Atmospheric Propagation and Adaptive Systems VII
John D. Gonglewski; Karin Stein, Editor(s)

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