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Latin American applied research

versão impressa ISSN 0327-0793


REY VEGA, L.; TRESSENS, S.  e  REY, H.. Adaptive filtering using projection onto convex sets. Lat. Am. appl. res. [online]. 2006, vol.36, n.2, pp. 123-127. ISSN 0327-0793.

In this paper we propose a novel adaptive filtering algorithm. The algorithm exploits the information given by the power spectral density of the noise extracted from the pe-riodogram of filtering error. The goal is try to match the spectral properties of the error filtering with the spectral properties of the measurement noise. With this in mind appropriate convex and closed sets are built and projections onto them are computed. The simulation results show that the algorithm has excellent convergence properties with a reduced number of updates. This could be exploited to obtain a lower computational load.

Palavras-chave : Adaptive Filtering; Projections; Convex Sets; Periodogram; Power Spectral Density.

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