Unbiased plain gradient algorithm for a second-order adaptive IIR notch filter with constrained poles and zeros

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dc.contributor.authorLoetwassana, W.
dc.contributor.authorPunchalard, R.
dc.contributor.authorKoseeyaporn, J.
dc.contributor.authorWardkein, P.
dc.date.accessioned2026-08-06T10:00:40Z
dc.date.available2026-08-06T10:00:40Z
dc.date.issued2010-08-01
dc.description.abstractThis article proposes an unbiased plain gradient algorithm for a second-order adaptive IIR notch filter with constrained poles and zeros. The proposed algorithm employs removing a dominant parameter that produces inherent bias. By using this technique, the performances are improved with slight expense in computational complexity. In this paper, theoretical analysis for deriving the estimations of bias and mean square error (MSE) at steady state are presented in closed form. Moreover, the stability bound of the algorithm is also derived. To confirm the analytical results, the computer simulations are provided to corroborate the effectiveness of the proposed algorithm. Furthermore, the performances of the algorithm are also compared with the plain gradient (PG) and modified plain gradient (MPG) algorithms. © 2010 Elsevier B.V. All rights reserved.
dc.identifier.citationSignal Processing, 90(8), 2513-2520, 2010
dc.identifier.doi10.1016/j.sigpro.2010.02.020
dc.identifier.issn01651684
dc.identifier.other2-s2.0-77951209154
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/3164
dc.sourceSignal Processing
dc.subjectAdaptive IIR notch filter
dc.subjectBiased and unbiased
dc.subjectGradient algorithm
dc.titleUnbiased plain gradient algorithm for a second-order adaptive IIR notch filter with constrained poles and zeros
dc.typeArticle

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