Abstract
This paper is concerned with desingning an adaptive state regulator which forces the inaccessible state of an unknown plant with unknown parameters and unknown order to go to zero as fast as possible. A class of system observer is introdced to provide the state estimates as well as the parameter estimates for the plant, which are unneccessary to converge to unique values. The adaptive state regulator is composed in a state feedback form by employing those estimates obtained from the system observer, which is to be adjusted dately. The evidence whether the state of the plant is forced to approach to zero can be acquired by observing the adaptive observer how the state estimates are regulated to zero.
