Steady-state comparative performance evaluation of piloted adaptive notch filter

In this paper, we have presented the performance comparison of the piloted adaptive notch filter with the second-order adaptive IIR lattice notch filter and the adaptive IIR notch filter with constrained poles and zeroes. The steady-state analysis for mean square error (MSE) of the frequency estimate using simulations has been provided with roles of the user variables such as notch bandwidth and signal to noise ratio (SNR). This study verifies the excellent performance exhibited by the piloted adaptive notch filter over other algorithms with respect to the speed of convergence and MSE. Extensive computer simulations have been done to study the performance over a wide range of SNR and frequency values.