Title :
Performance Analysis of the Equation Error Adaptive IIR Notch Filter with Constrained Poles and Zeros
Author :
Punchalard, Rachu ; Loetwassana, Wuthiporn ; Koseeyaporn, Jeerasuda ; Wardkein, P.
Author_Institution :
Fac. of Eng., Mahanakorn Univ. of Technol., Bangkok
fDate :
Oct. 18 2006-Sept. 20 2006
Abstract :
A statistical analysis of the equation error adaptive IIR notch filter (EANF) is presented in this paper. Analytical results reveal that if the filter is excited with a noisy sinusoid, the EANF will become a biased estimator. In addition, the obtained results show that the bias depends on the input noise power and input frequency but it is independent of the step-size parameter whereas the MSE (mean square error) depends on the bias and step-size parameter. However, these analytical results will be invalid when the signal to noise ratio (SNR) is less than 10 dB
Keywords :
IIR filters; adaptive filters; mean square error methods; notch filters; poles and zeros; MSE; constrained poles and zeros; equation error adaptive IIR notch filter; mean square error; signal to noise ratio; statistical analysis; Adaptive filters; Equations; Frequency; IIR filters; Mean square error methods; Performance analysis; Poles and zeros; Signal analysis; Signal to noise ratio; Statistical analysis;
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.2006.340046
