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Spectral Analysis Of Ocean Wave Imagery Using 2-d Linear Prediction

We present a method for spectral estimation based on 2-D linear prediction for the determination of wavelength h and propagation direction 8 of swell fields given by SEASAT SAR and SPOT imaging. This method is shown to provide interesting results when compared to classical Fourier analysis. Moreover, it allows the estimation of 1 and e over small analysis windows (up to 400x400 m2) and makes possible the analysis of non-stationary phenomena such as waves refracted by bathymetry or internal waves.