The estimation of ocean waves parameters from image spectra obtained by different orbital altitude SAR (ERS-1 and ALMAZ-1)

Author

Etkin, V. ; Litovchenko, K. ; Zaitsev, V. ; Raev, M. ; Ivanov, A. ; Semenov, S.

Author_Institution

Inst. of Space Res., Acad. of Sci., Moscow, Russia

Volume

3

fYear

34881

fDate

10-14 Jul1995

Firstpage

1866

Abstract

The possibilities of imaging ocean waves by two satellites, ERS-1 and the Russian ALMAZ-1, are analysed. The image spectra were calculated over 6 collocated image pairs taken quasi-simultaneously. It is shown, that due to higher (approx. 2 times) ratio of slant range to satellite velocity the spectra of ERS-1 are affected by a strong azimuth cut-off compared with those of ALMAZ-1. The distortions in wave imaging grow with growing of azimuth wavenumber and of difference of R/V parameter between ERS-1 and ALMAZ-1 SAR

Keywords

ocean waves; oceanographic techniques; radar imaging; remote sensing by radar; spaceborne radar; synthetic aperture radar; ALMAZ-1; ERS-1; SAR method; azimuth cut-off; collocated image pair; distortion; measurement technique; ocean wave parameters; radar imaging; remote sensing; sea surface; slant range; spaceborne radar; synthetic aperture radar; Azimuth; Image analysis; Notice of Violation; Ocean waves; Production; Radar polarimetry; Satellites; Sea surface; Surface waves;

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.1995.524051

Filename

524051