On the retrieval of the ocean wave spectrum from the SAR image

Author

Kanevsky, Mikhail B. ; Karaev, Vladimir

Author_Institution

Inst. of Appl. Phys., Acad. of Sci., Nizhny Novgorod, Russia

fYear

1995

fDate

3-6 Apr 1995

Firstpage

52

Lastpage

54

Abstract

The complex problem of the retrieval of the ocean wave spectrum from the synthetic aperture radar (SAR) image is not solved yet. The famous Hasselmanns´ solution (1991) being a significant success, nevertheless, can not be considered a complete solution of the problem, since it is based on an imaging mechanism which is not a unique one and not always the main one. Obviously, it is not necessary for the solution to be in closed form, i.e. to use the information contained in the image solely. Useful information is present in the backscattered signal Doppler spectrum but vanishes in the image. The present authors pay attention to the possibility of reducing of the nonlinear distortions in the SAR ocean images caused by the surface motion by using the mentioned additional information

Keywords

ocean waves; oceanographic techniques; radar applications; remote sensing; remote sensing by radar; synthetic aperture radar; Hasselmann; Hasselmanns; Hasselmanns´ solution; SAR image; backscattered signal Doppler spectrum; complex problem; imaging mechanism; inverse problem; measurement technique; nonlinear distortion; ocean wave; ocean wave spectrum; radar remote sensing; retrieval; sea surface; synthetic aperture radar; Analytical models; Bandwidth; Image retrieval; Nonlinear distortion; Ocean waves; Physics; Radar antennas; Sea surface; Surface waves; Synthetic aperture radar;

fLanguage

English

Publisher

ieee

Conference_Titel

Combined Optical-Microwave Earth and Atmosphere Sensing, 1995. Conference Proceedings., Second Topical Symposium on

Conference_Location

Atlanta, GA

Print_ISBN

0-7803-2402-1

Type

conf

DOI

10.1109/COMEAS.1995.472347

Filename

472347