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61.
We study a linear discrete-time partially observed system perturbed by a white noise. The observations are transmitted to
the estimator via communication channels with irregular transmission times. Various measurement signals may incur independent
delays, arrive at the estimator out of order, and be lost or corrupted. The estimator is given a dynamic control over the
sensors by taking part in producing the signals to be sent via the channels. The minimum variance state estimate and the optimal
sensor control strategy are obtained. Ideas of model predictive control are applied to derive a nonoptimal but implementable
in real time method for sensor control
This work was supported by the Australian Research Council. 相似文献
62.
Xing-Yuan Wang Bing Fan 《Communications in Nonlinear Science & Numerical Simulation》2012,17(2):953-963
In this paper, the generalized projective synchronization of a class of hyperchaotic systems is studied. On the basis of the state observer, it is not necessary to calculate the Lyapunov exponents, which makes this scheme simpler. Hyperchaotic Lü system and hyperchaotic Rössler systems are used as examples to validate the effectiveness of the proposed method. 相似文献
63.
We enlarge the language of R?-monoids, which are a non-commutative generalizations of both MV algebras and BL algebras, by adding a unary operation that describes algebraic properties of a state (= an analog of probability measures). The resulting algebras are called stateR?-monoids and state-morphismR?-monoids. We present basic properties of such algebras. We describe subdirectly irreducible algebras, some generators of the varieties of state-morphism R?-monoids, and an interplay between states and state operators. 相似文献
64.
In this paper, a chemostat model with variable yield and impulsive state feedback control is considered. We obtain sufficient conditions of the globally asymptotical stability of the system without impulsive state feedback control. We also obtain that the system with impulsive state feedback control has periodic solution of order one. Sufficient conditions for existence and stability of periodic solution of order one are given. In some cases, it is possible that the system exists periodic solution of order two. Our results show that the control measure is effective and reliable. 相似文献
65.
Geng Sheng WANG 《数学学报(英文版)》2005,21(5):1005-1014
This work is concerned with Pontryagin's maximum principle of optimal control problems governed by some non-well-posed semilinear heat equations. A type of approach to the non-well-posed optimal control problem is given. 相似文献
66.
Cristina Pignotti 《Journal of Mathematical Analysis and Applications》2005,305(1):197-218
In this paper we give semiconcavity results for the value function of some constrained optimal control problems with infinite horizon in a half-space. In particular, we assume that the control space is the l1-ball or the l∞-ball in Rn. 相似文献
67.
68.
A linear elliptic control problem with pointwise state constraints is considered. These constraints are given in the domain.
In contrast to this, the control acts only at the boundary. We propose a general concept using virtual control in this paper.
The virtual control is introduced in objective, state equation, and constraints. Moreover, additional control constraints
for the virtual control are investigated. An error estimate for the regularization error is derived as main result of the
paper. The theory is illustrated by numerical tests. 相似文献
69.
《Optimization》2012,61(3-4):383-405
The mathematical model of an industrial robot with initial value perturbations is considered as a parametric nonlinear control problem subject to control and state constraints. Based on recent stability results for parametric control problems, a robust nonlinear programming method is proposed for computing the sensitivity derivatives of optimal solutions. Real-time control approximations of perturbed optimal solutions are obtained by evaluating a first order Taylor expansion of the perturbed solution. The efficiency of the real-time approximation is demonstrated for the robot model 相似文献
70.