Estimation of the phase content of SAR images of the ocean using 2D bispectrum estimation

Author

Garello, R. ; Le Caillec, J.M. ; Chapron, B.

Author_Institution

Telecom Bretangne, Brest, France

Volume

2

fYear

34881

fDate

10-14 Jul1995

Firstpage

1075

Abstract

Phase information is relevant either for detecting and quantifying nonlinearities in a stochastic process or for reconstructing nonminimal phase linear systems. Higher order spectra (contrary to the spectrum) preserve the phase information and consequently can be used for both problems quoted previously. Knowing higher order statistics have already provided good results in sea surface classification, R. Garello et al. (1993), the natural following step is to take into account spatial context, by using the bispectrum in order to study nonlinearities in the SAR mapping process of the ocean surface

Keywords

higher order statistics; ocean waves; oceanographic techniques; radar applications; radar imaging; remote sensing; remote sensing by radar; synthetic aperture radar; SAR image; higher order spectra; higher order statistics; measurement technique; nonlinearity; ocean wave; phase content; radar remote sensing; sea surface; sea surface classification; spatial context; synthetic aperture radar; two dimensional bispectrum estimation; Frequency; Higher order statistics; Image reconstruction; Linear systems; Nonlinear filters; Oceans; Phase detection; Phase estimation; Sea surface; Signal analysis; Signal processing; Stochastic processes; Surface reconstruction; Surface waves; Vectors; Visualization;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 1995. IGARSS '95. 'Quantitative Remote Sensing for Science and Applications', International

Conference_Location

Firenze

Print_ISBN

0-7803-2567-2

Type

conf

DOI

10.1109/IGARSS.1995.521142

Filename

521142