Title :
Modified Adaptive IIR Notch Filter Based on Direct Frequency Estimation Algorithm
Author :
Punchalard, R. ; Koseeyaporn, J. ; Wardkein, P.
Author_Institution :
Telecommun. Eng. Dept., Mahanakorn Univ. of Technol., Bangkok
Abstract :
A modified adaptive IIR notch filter based on direct frequency estimation algorithm is presented. The proposed system uses the automatic gain control and the Kalman filtering technique to improve the convergence speed and reduce the steady-state mean square error (MSE) of the estimated frequency. The simulation results confirm that the performance of the proposed system has been improved over the conventional direct and indirect adaptive IIR notch filters
Keywords :
IIR filters; Kalman filters; adaptive filters; automatic gain control; convergence of numerical methods; frequency estimation; mean square error methods; notch filters; Kalman filtering technique; automatic gain control; convergence speed; direct frequency estimation algorithm; infinite impulse response filter; mean square error method; modified adaptive IIR notch filter; steady-state MSE; Adaptive filters; Convergence; Filtering; Finite impulse response filter; Frequency estimation; IIR filters; Kalman filters; Noise level; Signal processing algorithms; Steady-state;
Conference_Titel :
Communication systems, 2006. ICCS 2006. 10th IEEE Singapore International Conference on
Conference_Location :
Singapore
Print_ISBN :
1-4244-0411-8
Electronic_ISBN :
1-4244-0411-8
DOI :
10.1109/ICCS.2006.301455
