Abstract:
A generalized normalized gradient descend (GNGD) algorithm for linear finite-impulse response is presented and analized. The GNGD is an extension of the normalized least mean square (NLMS) algorithm by means of an additional gradient adaptive term in the denominator of the learning rate of NLMS. GNGD has better convergence in linear prediction configuration than other algorithms, good performances in system identification configuration in some conditions, worse response in interferences cancelling configuration and similar results with NLMS in reverse modelling configuration.