TY - GEN
T1 - Robust output-feedback prescribed-time stabilization of a class of nonlinear strict-feedback-like systems
AU - Krishnamurthy, P.
AU - Khorrami, F.
AU - Krstic, M.
PY - 2019/6
Y1 - 2019/6
N2 - While prior results on prescribed-time stabilization (i.e., convergence within a fixed prescribed time interval irrespective of the initial state) consider a chain of integrators with uncertainties matched with the control input (i.e., normal form), we consider here a general class of nonlinear strict-feedback-like systems with nonlinear state-dependent uncertain functions allowed throughout the system dynamics. Furthermore, we address the output-feedback problem and show that a dynamic observer and controller can be designed based on our dual dynamic high gain scaling based design methodology along with a novel temporal transformation and form of the scaling dynamics with temporal forcing terms to achieve both state estimation and regulation in the prescribed time interval.
AB - While prior results on prescribed-time stabilization (i.e., convergence within a fixed prescribed time interval irrespective of the initial state) consider a chain of integrators with uncertainties matched with the control input (i.e., normal form), we consider here a general class of nonlinear strict-feedback-like systems with nonlinear state-dependent uncertain functions allowed throughout the system dynamics. Furthermore, we address the output-feedback problem and show that a dynamic observer and controller can be designed based on our dual dynamic high gain scaling based design methodology along with a novel temporal transformation and form of the scaling dynamics with temporal forcing terms to achieve both state estimation and regulation in the prescribed time interval.
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U2 - 10.23919/ECC.2019.8795759
DO - 10.23919/ECC.2019.8795759
M3 - Conference contribution
AN - SCOPUS:85071578366
T3 - 2019 18th European Control Conference, ECC 2019
SP - 1148
EP - 1153
BT - 2019 18th European Control Conference, ECC 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 18th European Control Conference, ECC 2019
Y2 - 25 June 2019 through 28 June 2019
ER -