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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 24, Iss. 7 — Apr. 1, 1985
  • pp: 1064–1072

Optical analysis of a simulated image of the sea surface

Josué Alvarez Borrego and Marco A. Machado  »View Author Affiliations


Applied Optics, Vol. 24, Issue 7, pp. 1064-1072 (1985)
http://dx.doi.org/10.1364/AO.24.001064


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Abstract

A simulated sea surface with a Pierson-Neumann power spectrum was generated by a numerical model. The image was recorded on photographic film by means of a microdensitometer with a writing mode. To obtain the bidimensional power spectrum of this simulated image of the sea surface, a coherent optical system was used. This power spectrum has information about frequencies in the highest energy peak and the direction that the waves have at a specific time. The Pierson-Neumann power spectrum used to generate the simulated sea surface was compared with the bidimensional power spectrum obtained with the coherent optical system. Attenuation of the high frequencies in the measured spectrum was observed. This attenuation was probably caused by distribution of density values in the film or by the aperture of the detector used in the coherent optical system. Optical autocorrelations of the simulated sea surface were obtained, and a high degree of correlation in the direction perpendicular to the wind was found.

© 1985 Optical Society of America

History
Original Manuscript: November 30, 1984
Published: April 1, 1985

Citation
Josué Alvarez Borrego and Marco A. Machado, "Optical analysis of a simulated image of the sea surface," Appl. Opt. 24, 1064-1072 (1985)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-24-7-1064

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