Design of delayless multi-sampled subband functional link neural network with application to active noise control

To accelerate the convergence speed of the functional link neural network (FLNN) particularly for colored input signals, this paper proposes a delayless multi-sampled multiband-structured subband FLNN (DMSFLNN) structure. Then, to update the weights of the DMSFLNN, a normalized subband adaptive algorithm is devised. Next, the stability conditions, optimal step size and computational complexity are investigated. Moreover, the proposed method is applied to the nonlinear active noise control, obtaining the delayless multi-sampled multiband-structured filtered-s normalized least mean square (DMSFsNLMS) algorithm. Finally, simulation results demonstrate that the proposed method improves the convergence speed of the FLNN.