ABSTRACT

The NARMAX model [99], the Wiener model [97,138], the bilinear model [96], and the Hammerstein model [95] are typical nonlinear systems, and deadzone, input saturation, hysteresis, and so on are the typical nonlinear elements in practical systems. The classical adaptive control design methods for nonlinear systems include feedback linearization based adaptive control [139,140], the backstepping method [141-144], adaptive predictive control [145-148], the multiple model method [149,150], sliding mode adaptive control [151,152], and so on. All these methods are model-based control design methods since accurate plant

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dynamic models of the controlled system are required for control system design and analysis.