A fully adaptive normalized nonlinear gradient descent algorithm for nonlinear system identification

نویسندگان

  • Igor R. Krcmar
  • Danilo P. Mandic
چکیده

A fully adaptive normalized nonlinear gradient descent (FANNGD) algorithm for neural adaptive filters employed for nonlinear system identification is proposed. This full adaptation is achieved using the instantaneous squared prediction error to adapt the free parameter of the NNGD algorithm. The convergence analysis of the proposed algorithm is undertaken using contractivity property of the nonlinear activation function of a neuron. Simulation results show that a fully adaptive NNGD algorithm outperforms the standard NNGD algorithm for nonlinear system identification.

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تاریخ انتشار 2001