Title :
SAR ocean image decomposition using the Gabor expansion
Author :
Teti, J.G., Jr. ; Kritikos, H.N.
Author_Institution :
Moore Sch. of Electr. Eng., Pennsylvania Univ., Philadelphia, PA, USA
fDate :
1/1/1992 12:00:00 AM
Abstract :
Demonstrates the utility of the Gabor expansion as a new tool in geophysical research. The Gabor expansion provides good time-frequency (or space-wavenumber) localization and is ideally suited to represent nonstationary processes. The properties of this tool are demonstrated by expanding an FM-chirp waveform, and azimuth cuts taken from two different SAR ocean images. The effects of filtering in Gabor phase space are also investigated
Keywords :
ocean waves; oceanographic techniques; remote sensing by radar; FM-chirp waveform; Gabor expansion; SAR ocean image decomposition; azimuth cuts; filtering; geophysical research; nonstationary processes; ship wake; synthetic aperture radar; Azimuth; Filtering; Gabor filters; Hilbert space; Image decomposition; Oceans; Radar polarimetry; Remote sensing; Signal processing; Time frequency analysis;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
