EXCITATION SIGNAL USED FOR EXTRACTING NONLINEAR BLACK BOX BEHAVIOR MODEL AND RADIAL BASIS FUNCTION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a method for generating or extracting a behavior model from the embedding of a measurement value by the use of the time domain measurement value of a nonlinear device. SOLUTION: The behavior model of the nonlinear device, which is obtained as a result, is a black box model adapted to the nonlinear device having one or more input ports and one or more output ports. The black box model becomes a function shape being the function in the closed shape of an input variable generating output with respect to structural shape. The behavior model generating method includes steps for adding an input signal to the nonlinear device, sampling the input signal, generating input data, measuring the response of the device, generating output data, generating an embedding data set, fitting the function to the embedding data set and verifying the fitted function. In the method, a CDMA type signal is added and/or the new radial basis function can be fitted.