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Accession Number:
ADP002723
Title:
Ocean Wave Imaging by SAR (Synthetic Aperture Radars),
Corporate Author:
MARCONI CO LTD CHELMSFORD (ENGLAND)
Report Date:
1983-08-01
Abstract:
SAR imagery of the sea surface contains wave-like features. The direct imaging problem is to describe the image of a given sea surface. Four approaches are given here. These are linear imaging, Fourier series, functional expansion and asymptotic methods. Of particular interest is the loss of wave modulations due to nonlinear velocity bunching. The image power spectrum is analysed using functional expansions and the azimuthal banding is explained by stochastic nonlinear velocity bunching. The theoretical results agree closely with SEASAT data and some examples are given. The inverse sea imaging problem is to describe the sea surface corresponding to a given image. Some preliminary results using linear inversion techniques are given. Author
Supplementary Note:
This article is from 'Propagation Factors Affecting Remote Sensing by Radio Waves,' AD-A137 559, p3-1-3-20.
Pages:
0020
File Size:
0.00MB
