Results 241 to 250 of about 1,625,932 (290)
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Cybernetics and Systems, 2010
For a perturbed nonlinear dynamic system of second or higher order, the maximum admissible norm of state variables is derived. The uncertainty in a rectangular box is approximated by an analytic structure with high accuracy.
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For a perturbed nonlinear dynamic system of second or higher order, the maximum admissible norm of state variables is derived. The uncertainty in a rectangular box is approximated by an analytic structure with high accuracy.
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Inverse Optimality in Robust Stabilization
SIAM Journal on Control and Optimization, 1996This article centers around the relationship between stability and optimality. More precisely the question is considered if a robust control Lyapunov function for a control affine nonlinear system with constrained control and perturbation can be expressed as a solution of a Hamilton-Jacobi-Isaacs equation and hence enjoys certain optimality properties.
Freeman, R. A., Kokotovic, P. V.
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2003
In the previous chapters the stability property of a given time-delay system was studied. In engineering applications, it is now very common that one does not know exactly the system under investigation; that is, the system contains some elements (blocks) that are uncertain.
Keqin Gu +2 more
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In the previous chapters the stability property of a given time-delay system was studied. In engineering applications, it is now very common that one does not know exactly the system under investigation; that is, the system contains some elements (blocks) that are uncertain.
Keqin Gu +2 more
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Robust Stabilization of Uncertain Systems
SIAM Journal on Control and Optimization, 1983In this paper we consider the systems described by \[dx = Axdt + Budt + \sum_i {\sigma _i F_i xd\beta _i } \qquad {\text{or}}\qquad \dot x = Ax + Bu + \sum_i {B_i F_i (x,t)C_i x,} \] and we will derive conditions under which there exists a feedback control law $u = Kx$ such that the closed loop system is stable for all $\sigma _i $ or (smooth ...
Willems, Jacques L., Willems, Jan C.
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2013
Robust control deals explicitly with system uncertainty and how it affects the design of control systems. By dealing with the real parameter uncertainties in control systems we can identify the critical subset of the uncertain parameter set over which the stability will be violated. The analysis depends how system uncertainty is represented.
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Robust control deals explicitly with system uncertainty and how it affects the design of control systems. By dealing with the real parameter uncertainties in control systems we can identify the critical subset of the uncertain parameter set over which the stability will be violated. The analysis depends how system uncertainty is represented.
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Brookings Papers on Economic Activity
ABSTRACT: Any fiscal path is sustainable if future fiscal policy responds sufficiently to high deficits. Previous work found that Congress reduced the deficit during 1984–2003 when projected deficits rose. We find that this year-toyear feedback has disappeared: Congress on average during 2004–2024 did not respond to the projected deficit.
Alan Jeffrey Auerbach, Danny Yagan
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ABSTRACT: Any fiscal path is sustainable if future fiscal policy responds sufficiently to high deficits. Previous work found that Congress reduced the deficit during 1984–2003 when projected deficits rose. We find that this year-toyear feedback has disappeared: Congress on average during 2004–2024 did not respond to the projected deficit.
Alan Jeffrey Auerbach, Danny Yagan
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Robust stabilization via saturated feedback
IEEE Transactions on Automatic Control, 2005In this paper, we deal with the problem of stabilization of uncertain systems in the presence of input constraint. First algebraic conditions are derived for input-to-state stability of linear system with saturated linear feedback of low dimension. Then a recursive design procedure is derived for robust stabilization of block upper triangular nonlinear
ANGELI, DAVID, Y. CHITOUR, L. MARCONI
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Robust quadratic stabilization
1997In this chapter, a robust control design based on the quadratic approach was presented. The performance requirements are considered following two different paths. The first one consists of locating the closed-loop system poles in a disk, the parameters defining the disk (centre and radius) being chosen in a way that ensured good transient behaviour.
Germain Garcia +3 more
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Robust lp Stability and Performance
IFAC Proceedings Volumes, 1995Abstract In this paper we study robust stability, in the lp sense, against structured perturbations of bounded lp norm. The perturbations may be either linear time-varying, nonlinear time-varying, or nonlinear time-invariant. We develop exact tests for robust stability for each case in terms of convex optimization problems. These results are extended
Peter M. Young, Munther A. Dahleh
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Robust D-stability via positivity
Proceedings of the 1998 American Control Conference. ACC (IEEE Cat. No.98CH36207), 1998The authors approach the problem of robust \(D\)-stability of a complex polynomial by converting it to positivity in the real domain of the magnitude function. In this way the stability test can be performed by means of the Bernstein subdivision algorithm which requires only real arithmetic.
Šiljak, D. D., Stipanović, D. M.
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