Step size bound for narrowband feedback active noise control

This paper presents the derivation of the convergence analysis of the feedback active noise control under perfect and imperfect secondary path transfer functions. Existing analysis approaches do not include the analysis of the reference signal synthesis errors due to the complexity of interrelated feedback nature. A detailed derivation of the maximum step size bound for the feedback active noise control system has been formulated for perfect and imperfect secondary-path estimation. This theoretical work has been verified by computer simulations.