Title :
Applications of Wigner-Ville distribution on ERS-1 SAR images
Author :
Grassin, S. ; Garello, R.
Author_Institution :
Dept. ITI, Telecom Bretagne, Brest, France
Abstract :
We propose here some utilizations of the Wigner-Ville distribution (WVD) for analysing ocean SAR images. It can be used for different purposes, the first one being the specific ability of the WVD for spectral analysis, especially with non-stationary signals. A second possible use is in the detection of roughness variations of the ocean surface, via the decrease of the spectrum around its maximum. It allows for instance automatic detection of oil slick or floes
Keywords :
Wigner distribution; geophysical signal processing; oceanographic techniques; remote sensing by radar; spectral analysis; synthetic aperture radar; water pollution measurement; ERS-1 SAR images; Wigner-Ville distribution; automatic detection; nonstationary signals; ocean SAR images; ocean surface; oil floes; oil slick; roughness variations detection; spectral analysis; Discrete Fourier transforms; Frequency; Oceans; Petroleum; Radar detection; Rough surfaces; Sea surface; Spectral analysis; Surface roughness; Synthetic aperture radar;
Conference_Titel :
Time-Frequency and Time-Scale Analysis, 1996., Proceedings of the IEEE-SP International Symposium on
Conference_Location :
Paris
Print_ISBN :
0-7803-3512-0
DOI :
10.1109/TFSA.1996.547471
