European Control Conference 1993: Volume 3

adaptive algebraic algorithm analysis applied approach approximation assume Automatic behaviour bounded called closed closed-loop complexity computed consider constant constraints continuous control law control system convergence corresponding defined definition denote depends derived described determined developed differential dynamics equation equivalent error estimation example exists feedback Figure frequency function given gives Hence identification IEEE initial input internal introduced Lemma linear linear systems loop matrix means measured method nonlinear Note observer obtained operating optimal output parameter performance plant polynomial positive possible presented problem procedure proof properties proposed qualitative reference regulator relation representation respectively response robustness satisfies shown signal simulation solution space specific stability step structure techniques Theorem theory tion transfer transformation values variables vector zero