Adaptive IIR notch filter using a modified sign algorithm

Modified sign algorithm (MSA) for a second-order constrained adaptive IIR notch filter (ANF) is proposed and analyzed in this paper. Difference equations for the convergence in the mean and of the mean square, and steady-state estimation bias and MSE are derived in closed form. Moreover, a coarse st...

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Veröffentlicht in:	Signal processing 2009-02, Vol.89 (2), p.239-243
Hauptverfasser:	Punchalard, R., Koseeyaporn, J., Wardkein, P.
Format:	Artikel
Sprache:	eng
Schlagworte:	Adaptive algorithms Adaptive IIR notch filter Algorithms Applied sciences Computer simulation Convergence Detection, estimation, filtering, equalization, prediction Exact sciences and technology Exact solutions Information, signal and communications theory Mathematical analysis Mean square values Modified sign algorithm Notch filters Signal and communications theory Signal, noise Telecommunications and information theory
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Beschreibung
Zusammenfassung:	Modified sign algorithm (MSA) for a second-order constrained adaptive IIR notch filter (ANF) is proposed and analyzed in this paper. Difference equations for the convergence in the mean and of the mean square, and steady-state estimation bias and MSE are derived in closed form. Moreover, a coarse stability for the MSA is carried out. Computer simulations are conducted to corroborate the theoretical analysis.
ISSN:	0165-1684 1872-7557
DOI:	10.1016/j.sigpro.2008.08.002