Directional Wave Spectrum
Mostrando 1-3 de 3 artigos, teses e dissertações.
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1. Acoplamento de simulador de imagens SAR a interpretador MPI para estimação do espectro direcional de ondas. / Coupling of a SAR image simulator with the MPI algorithm for the estimation of the directional wind wave spectrum.
A prototype of a graphical interface for SAR (Synthetic Aperture Radar) images has being developed and improved. In its current stage, the tool is able to extract the directional wave spectrum and the wind field of ERS 1&2 images. Among the various approaches used in developing the prototype, the evaluation of the currently used methodology in the image inte
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/05/2012
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2. Método de estimação de espectro direcional de ondas baseado em movimentos de 1ª ordem de sistemas oceânicos: validação em escala reduzida e verificação em escala real. / Directional wave spectrum estimation method based on first order motions of offshore systems: model-scale validation and real-scale verification.
This text is about estimating directional wave spectra based on first order motions of stationary systems by means of a bayesian inference method. After being described the method and its main sources of uncertainties discussed, an experimental validation was carried out with two different types of hulls for irregular waves and bimodal seas, with a posterior
Publicado em: 2008
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3. Spatial and temporal frequency selectivity of neurones in visual cortical areas V1 and V2 of the macaque monkey.
The spatial and temporal frequency selectivity of 148 neurones in the striate cortex, V1, and of 122 neurones in the second visual cortical area, V2, of the macaque monkey were studied using sine-wave gratings of suprathreshold contrast drifting over the receptive field at the preferred orientation and direction. Neurones in V1 and V2 were selective for diff