抄録
A new method of designing an observer-based adaptive controller is proposed for a class of singleinput single-output nonlinear systems, which have no unknown parameters in the term multiplied by the input. This method doesn't require the measurement of the states. Furthermore, the systems are only required to be transformable into the adaptive observer form, not into the output-feedback normal form. Consequently, this method can be applied to the systems which the existing methods can't be applied to.