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Necessary and sufficient multi-input/multioutput conditions for local controllability and causal reconstructibility of 2-D systems are presented, which are based on 2-D matrix polynomial equations. The conditions are computationally attractive; only unimodular operations in a Euclidean ring are required. In addition, when testing controllability and/or reconstructibility, one obtains a deadbeat regulator and/or an exact observer as by products 相似文献
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In this paper,we establish sufficient conditions for the controllability of a class of semilinear impulsive integrodifferential systems with nonlocal initial conditions in Banach spaces.We derive the c... 相似文献
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KING-WAH ERIC CHU 《International journal of control》2013,86(5):1761-1770
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For nonlinear continuous-time control systems we introduce the notion of controllability with selectable time, which is a little bit stronger than the usual controllability notion. For a large class of nonlinear systems on compact manifolds, controllability with selectable time is equivalent to controllability together with strong accessibility. It turns out that the controllability of products of independent control systems is related to this new controllability notion. The main result states that a smooth control affine product system is controllable if and only if all factors are controllable and at most one factor is not controllable with selectable time, provided the accessibility algebra of the product system has full rank. 相似文献
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In this paper, we establish a set of sufficient conditions for the controllability of damped second-order impulsive neutral integrodifferential systems with nonlocal initial conditions in Banach spaces. The approach used is the Sadovskii fixed point theorem combined with a noncompact condition on the cosine family of operators. An example is presented to illustrate the result. 相似文献
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In this article, we investigate the controllability of multi-agent systems with leaders as control inputs, where the interconnection is directed and weighted. We employ weight-balanced partition to classify the interconnection graphs, and study the controllable subspaces with given nontrivial weight-balanced partition. We also provide two necessary and sufficient graph conditions on structural controllability and strong structural controllability. Moreover, we consider the effect of the zero row-sum restrictions of the system matrices on structural controllability. 相似文献
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Complete controllability of a semi-linear stochastic system assuming controllability of the associated linear sytem is studied. It is also shown that a non-linear stochastic system is locally null controllable provided that the corrsponding linearized system is controllable. 相似文献
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Controllability of switched bilinear systems 总被引:4,自引:0,他引:4
Daizhan Cheng 《Automatic Control, IEEE Transactions on》2005,50(4):511-515
The controllability of switched bilinear systems (SBLSs) is considered. Three kinds of controllabilities, including weak controllability, approximate controllability, and global controllability, are investigated one by one. Sets of easily verifiable sufficient conditions are obtained for each case, which are applicable to a large class of switched bilinear systems. 相似文献
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主要探讨周期性系统(包括连续和离散两种情形)的能控性问题,对文献中有关周期为To的连续周期性系统的能控性结论进行了完善,推导出系统能控等价于单周期(0,To)内能控的结论,并将这些结论直接推广到离散周期性系统;然后讨论了离散前后周期性系统能控性保持不变的可能性,证明在采用不等间距采样方式时,离散前后周期性系统的能控性保持不变。 相似文献
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The concept of controllability of 2-D systems is introduced in a behavioral framework. This property is defined as a systems concept and is characterized in terms of system representations. State-space realizations for controllable 2-D systems are presented. The structure of state-space systems is analyzed, and the notions of trimness, reachability, and observability are introduced and characterized. These realizations do not depend on any assumptions concerning causality 相似文献
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We discuss several concepts of controllability for stochastic systems and derive sufficient (and in most cases also necessary) algebraic conditions for the controllability of the state and the output of white and colored noise linear systems. These criteria reduce to the well known deterministic ones in the absence of noise. 相似文献
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The paper deals with a discontinuous control system that consists of two finite-dimensional linear systems; the first describes the motion in a given half-space, the second in the complementary half-space. Necessary and sufficient conditions for local controllability are obtained. 相似文献
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In the paper, the approximate controllability of linear abstract second-order infinite-dimensional dynamical systems is considered. It is proved using the frequency-domain method, that approximate controllability of second-order system can be verified by the approximate controllability conditions for the corresponding simplified first-order system. General results are then applied for approximate controllability investigation of a vibratory dynamical system modeling flexible mechanical structure. Some special cases are also considered. Moreover, remarks and comments on the relationships between different concepts of controllability are given. The paper extends earlier results on approximate controllability of second-order abstract dynamical systems. 相似文献
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K. Balachandran 《International journal of control》2013,86(3):486-491
In this paper sufficient conditions for the complete controllability of a stochastic semilinear integrodifferential system in finite dimensional spaces are established using the resolvent matrix and the Banach fixed point theorem. An example is provided to illustrate the result. 相似文献
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DIRK AEYELS 《International journal of control》2013,86(6):2027-2034
In this paper it is shown that for any controllable linear time-invariant system, an arbitrary initial point can be driven to an arbitrary final point by means of an input, polynomial in t of degree 2k— I, with k the controllability index of the system. Also, the state trajectory is polynomial in time and of the same degree. The bound on the degree is an improvement with respect to similar results in the literature. The proof of this result is rather direct compared to the involved proof in the literature of a weaker theorem. An extension of this result considering sinusoidal inputs and state trajectories is provided. 相似文献
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The Picard type approximation is used to derive sufficient conditions for approximate and complete controllability of semilinear stochastic systems with non-Lipschitz coefficients under the assumption that the corresponding linear system is appropriately controllable. 相似文献