Steady-State Analysis of Simplified Lattice-Based Adaptive IIR Notch filter

摘要

In this paper we propose a new lattice based second-order adaptive infinite impulse response (IIR) notch fil- ter that uses a simplified adaptation algorithm. Steady-state analysis of the proposed structure is then studied based on the mean-squared error analysis of the steady-state variable coeffi- cient fluctuations. The analysis is used to derive simple analyti- cal expressions for steady-state variable coefficient variance and an upper bound for the step size adaptation constant.