Identification of Volterra kernels of nonlinear system having backlash type nonlinearity

The authors have recently developed a new method for identification of Volterra kernels of nonlinear systems by use of pseudorandom M-sequence and correlation technique. This method is applied to the measurement of Volterra kernels of those nonlinear systems having backlash type nonlinearity. The comparison of actual output and the estimated output by use of the measured Volterra kernels show that we can still use Volterra kernel representation for those backlash-type nonlinear systems.