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Latin American applied research

versión impresa ISSN 0327-0793


COUSSEAU, J. E.; SCOPPA, J. P.  y  DONATE, P. D.. New Steiglitz-McBride adaptive lattice notch filters. Lat. Am. appl. res. [online]. 2005, vol.35, n.2, pp. 155-160. ISSN 0327-0793.

Two novel adaptive notch filters are presented. The updating algorithms are based on the Steiglitz-McBride error criterion minimization and the basic realizations of the notch filters are all-pass based lattice filters. The proposed realizations represent an extension of a previous ad-hoc scheme for adaptive notch filtering and avoid finding the roots of a high order polynomial to obtain the unknown frequencies of interest. Since the structure is based on the lattice realization, suitable properties with finite length precision realizations can be expected. Computer simulations are included to verify the adaptive filter performance when compared with alternative realizations.

Palabras clave : Frequency Estimation; Lattice Notch Filter; Steiglitz-McBride Method.

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