Paper
28 February 2002 Signal structure of the over-the-horizon sea surface radar
M. V. Ignatenko, Mikhail V. Tinin
Author Affiliations +
Proceedings Volume 4678, Eighth International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; (2002) https://doi.org/10.1117/12.458501
Event: Eighth Joint International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 2001, Irkutsk, Russian Federation
Abstract
Obtaining information about the state of the sea surface using HF radars has been the subject of intense investigations during the past several decades. Most theoretical investigations made to date have adopted, as the incident wave, a plane wave with a certain wave vector. In real conditions, however, with the finite beam width, the ionosphere-reflected beam of waves of a finite width is usually incident on the scattering sea surface, which must be taken into account when investigating the form of the spectrum and processing it by extracting information about the sea surface. This paper investigates the scattering of fluctuating ionospheric radio waves from the sea surface within limits of the geometrical optics by taking into consideration the finiteness of the beam of the receive and transmit antennas. A numerical simulation is used to investigate the influence of the finiteness of the beam width, the time of coherent integration, and ionospheric irregularities on the structure of the spectrum of the received signal of the overt-the-horizon sea surface radar.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
M. V. Ignatenko and Mikhail V. Tinin "Signal structure of the over-the-horizon sea surface radar", Proc. SPIE 4678, Eighth International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, (28 February 2002); https://doi.org/10.1117/12.458501
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KEYWORDS
Scattering

Radar

Antennas

Geometrical optics

Laser scattering

Dielectric dispersion

Plasma

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