Ocean waves and optimal SAR processing: don´t adjust the focus

Author

Vachon, P.W. ; Raney, R.K.

Author_Institution

Canada Centre for Remote Sensing, Ottawa, Ont., Canada

Volume

30

Issue

3

fYear

1992

fDate

5/1/1992 12:00:00 AM

Firstpage

627

Lastpage

630

Abstract

Concepts for the optimal processing of synthetic-aperture radar (SAR) ocean wave observations are discussed. The recommended procedure requires processing of the SAR signal data to individual looks. The Fourier transform of each look is then calculated and phase compensated, than all are combined. The method leads to an optimized wave spectral estimation for SAR data. It is emphasized that these concepts support the conclusion that the SAR processor focus setting should be equal to that for a static scene. Focus adjustment away from this value leads to results that are less than optimal

Keywords

ocean waves; oceanographic techniques; remote sensing by radar; signal processing; Fourier transform; SAR; individual looks; look; measurement; ocean wave; optimal processing; optimized wave spectral estimation; phase compensated; processor focus setting; remote sensing; synthetic-aperture radar; technique; Focusing; Layout; Ocean waves; Particle scattering; Radar imaging; Radar polarimetry; Radar scattering; Sea surface; Surface waves; Synthetic aperture radar;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing, IEEE Transactions on

Publisher

ieee

ISSN

0196-2892

Type

jour

DOI

10.1109/36.142945

Filename

142945