Zobrazeno 1 - 10
of 110
pro vyhledávání: '"Elmer G. Gilbert"'
Publikováno v:
Automatica. 50:1466-1472
Extended command governors (ECGs) are add-on schemes that modify set-point commands as necessary to ensure that imposed state and control constraints are not violated by closed-loop systems designed for set-point tracking. In this paper, we propose a
Autor:
Elmer G. Gilbert, Sara Spangelo
Publikováno v:
Journal of Aircraft. 50:232-238
This paper considers the optimization of flight trajectories for solar-powered aircraft. This work is unique relative to past work because flight path is constrained to repeatedly traverse a specified closed ground path. Constraints of this form are
Publikováno v:
IFAC Proceedings Volumes. 45:282-290
The paper provides an overview of reference governors, command governors and extended command governors, which are add-on schemes for enforcing pointwise-in-time state and control constraints in set-point tracking problems. It emphasizes recent devel
Autor:
Chong Jin Ong, Elmer G. Gilbert
Publikováno v:
Automatica. 47:334-340
This paper considers a nonlinear feedback control policy that is an extension of those provided by command governors and reference governors. As in these control approaches it applies to discrete-time linear systems with hard constraints and set boun
Autor:
Elmer G. Gilbert, Chong Jin Ong
Publikováno v:
Automatica. 42:1563-1568
This paper is concerned with outer approximations of the minimal disturbance invariant set (MDIS) of a discrete-time linear system with an additive set-bounded disturbance. The k-step disturbance reachable sets (Minkowski partial sums) are inner appr
Publikováno v:
Automatica. 42:1011-1016
In this paper, receding horizon model predictive control (RHMPC) of nonlinear systems subject to input and state constraints is considered. We propose to estimate the terminal region and the terminal cost off-line using support vector machine learnin
Publikováno v:
Automatica. 40:1955-1964
This paper develops a computational approach for characterizing the stability regions of constrained nonlinear systems. A decision function is constructed that allows arbitrary initial states to be queried for inclusion within the stability region. D
Autor:
Ilya Kolmanovsky, Elmer G. Gilbert
Publikováno v:
Automatica. 38:2063-2073
This paper proposes a new approach to reference governor design. As in prior literature, the governor accepts input commands and modifies their evolution so that specified pointwise-in-time constraints on state and control variables are satisfied. Th
Autor:
Elmer G. Gilbert, S. Sathiya Keerthi
Publikováno v:
Machine Learning. 46:351-360
Convergence of a generalized version of the modified SMO algorithms given by Keerthi et al. for SVM classifier design is proved. The convergence results are also extended to modified SMO algorithms for solving ν-SVM classifier problems.
Autor:
Elmer G. Gilbert, Chong Jin Ong
Publikováno v:
IEEE Transactions on Robotics and Automation. 17:531-539
Considers fast algorithms for computing the Euclidean distance between objects that are modeled by convex polytopes in three-dimensional space. The algorithms, designated by RGJK, are modifications of the Gilbert-Johnson-Keerthi algorithm that follow