Adaptive Signal Processing
Mostrando 25-29 de 29 artigos, teses e dissertações.
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25. Utilização conjunta de equalização adaptativa e codigos corretores de erro em processamento espacial e temporal
This work deals with the joint use of adaptive equalization and forward error correction codes. Firstly, we show some representative techniques of joint adaptive equalization and error correction codes. Secondly, we analyze through simulations and error surfaces the blind convergence of a linear transversal filter adapted by the least mean square (LMS) algor
Publicado em: 2001
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26. Wavelet-based techniques for adaptive feature extraction and pattern recognition.
In this work, wavelet-based techniques are studxied for adaptive feature extraction in the time-frequency plane. Emphasis is placed on pattern recognition problems, in particular fault detection in control systems and classification / clustering electrocardiographic signals. In the context of fault detection, a technique for residue generation using wavelet
Publicado em: 1999
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27. Filtragem adaptativa com restrições lineares por minimos quadrados
The basic problem of linear constrained filtering consists In searching ao optimal filter whose parameters are subject to a set of linear equations. For transversal structures, the optimal coefficients In the mean-square sense are given by the Wlener-Hopf equations. The introduction of constraints leads to a modified solution, obtained by the Lagrange multip
Publicado em: 1991
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28. An analysis of neural receptive field plasticity by point process adaptive filtering
Neural receptive fields are plastic: with experience, neurons in many brain regions change their spiking responses to relevant stimuli. Analysis of receptive field plasticity from experimental measurements is crucial for understanding how neural systems adapt their representations of relevant biological information. Current analysis methods using histogram e
The National Academy of Sciences.
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29. Coordination of central odor representations through transient, non-oscillatory synchronization of glomerular output neurons
At the first stage of processing in the olfactory pathway, the patterns of glomerular activity evoked by different scents are both temporally and spatially dynamic. In the antennal lobe (AL) of some insects, coherent firing of AL projection neurons (PNs) can be phase-locked to network oscillations, and it has been proposed that oscillatory synchronization of
National Academy of Sciences.