This paper aims to improved the convergence speed, steady-state mean square error and variance of the filter coefficient. The proposed adaptive algorithm is for a second-order adaptive IIR notch filter based on gradient algorithm. The simulation results shown that the proposed algorithm provides fast convergence speed, and has low steady-state mean square error and low variance of filter coefficient.
['Pornpimon Tupchai', 'C. Benjangkaprasert', 'O. Sangaroon', 'K. Janchitrapongvej']
A new algorithm of adaptive IIR notch filter for the detection of sinusoids