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Proceedings Paper

Directional wave spectra derived from synthetic aperture radar images
Author(s): Hongwei Zheng; I-fan Shen
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Paper Abstract

The article is devoted to exploring the synthetic aperture radar (SAR) imaging theory of the ocean waves. Due to the orbital motion of the water particles associated with the long ocean surface waves the image formation called the velocity bunching mechanism, is mainly concerned. Buoy data measured by the National Data Buoy Center (NDBC), US, for wave height spectra is also obtained. The measured wave height spectra are applied in the imaging models. The linear and quasi-linear imaging models for simulating SAR image spectra of ocean waves are explored. The validation of the quasi-linear model is strongly dominated by the range/velocity ratio R/V. However, R/V is weak to the linear model. Besides, the velocity bunching MTF is well implemented by the quasi-linear model.

Paper Details

Date Published: 8 May 2003
PDF: 6 pages
Proc. SPIE 4892, Ocean Remote Sensing and Applications, (8 May 2003); doi: 10.1117/12.466081
Show Author Affiliations
Hongwei Zheng, Fudan Univ. (China)
I-fan Shen, Fudan Univ. (China)

Published in SPIE Proceedings Vol. 4892:
Ocean Remote Sensing and Applications
Robert J. Frouin; Yeli Yuan; Hiroshi Kawamura, Editor(s)

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