Title :
Bias Removal in Equation Error Adaptive IIR Notch Filter with Constrained Poles and Zeros
Author :
Punchalard, Rachu ; Loetwassana, Wuthiporn ; Koseeyaporn, Jeerasuda ; Wardkein, Paramote
Author_Institution :
Fac. of Eng., Mahanakorn Univ. of Technol., Bangkok
fDate :
Oct. 18 2006-Sept. 20 2006
Abstract :
A new equation-error based gradient algorithm, which is derived from standard PG (plain gradient) algorithm, is proposed for a second-order adaptive IIR notch filter with constrained poles and zeros. The proposed technique employs the technique of minimizing an unconstrained error function to remove the bias in an estimated coefficient. It is demonstrated that the suggested method gives unbiased IIR system parameter estimation
Keywords :
IIR filters; adaptive filters; gradient methods; notch filters; poles and zeros; bias removal; constrained poles and zeros; equation error adaptive IIR notch filter; equation-error based gradient algorithm; plain gradient algorithm; unconstrained error function; Adaptive control; Adaptive filters; Equations; Error correction; Finite impulse response filter; IIR filters; Parameter estimation; Poles and zeros; Programmable control; Signal processing algorithms;
Conference_Titel :
Communications and Information Technologies, 2006. ISCIT '06. International Symposium on
Conference_Location :
Bangkok
Print_ISBN :
0-7803-9741-X
Electronic_ISBN :
0-7803-9741-X
DOI :
10.1109/ISCIT.2006.340047
