Modeling hysteresis using hybrid method of improved describing function and neural networks

A. new method of establishing hysteresis model using describing function of backlash and neural networks is proposed in this paper. With the describing function of backlash N(A), a mathematical expression is written, which combined with sinusoidal function working as input function can well establish major hysteresis loop. Finally, we established the modeling of neural network based on the new method. The established modeling can well approximate a given real data. The simulation result proves the validity and feasibility of the scheme.