-
作者：Shang, Jun; Yu, Hao; Chen, Tongwen
作者单位：University of Alberta
摘要：This article considers the worst-case stealthy attack strategies on stochastic event-based state estimation. Smart sensors equipped with local event-triggered Kalman filters are used to transmit innovations. Contrary to classic Kalman filters, the transmitted innovation screened by the stochastic decision rule does not follow a Gaussian distribution. A type of distribution called complete Gaussian crater is defined and analyzed, which is essential for designing stealthy attacks. The evolution ...
-
作者：Wei, Cong; Tanner, Herbert G.
作者单位：University of Delaware
摘要：This article presents a method to synchronize a network of spatially distributed nonlinear oscillators that can only interact with each other intermittently and at very close range. This problem arises in applications where semipassive sensors drift along patterns of ambient geophysical flows that bring them close periodically and have to establish periodic rendezvous in order to efficiently exchange information or be retrieved. The problem is challenging because cooperative control action can...
-
作者：Parasnis, Rohit Yashodhar; Franceschetti, Massimo; Touri, Behrouz
作者单位：University of California System; University of California San Diego
摘要：We study the convergence properties of social Hegselmann-Krause (HK) dynamics, a variant of the HK model of opinion dynamics where a physical connectivity graph that accounts for the extrinsic factors that could prevent interaction between certain pairs of agents is incorporated. As opposed to the original HK dynamics (which terminates in finite time), we show that for any underlying connected and incomplete graph, under a certain mild assumption, the expected termination time of social HK dyn...
-
作者：Haidar, Ihab; Barbot, Jean-Pierre; Rapaport, Alain
作者单位：Centre National de la Recherche Scientifique (CNRS); CNRS - Institute for Information Sciences & Technologies (INS2I); INRAE; Universite de Montpellier
摘要：We consider the observation problem for a particular class of bidimensional systems with scalar output, which requires the consideration of an embedding in a higher dimension for the usual high-gain observer synthesis. We propose a new approach that does not require any coordinates transformation. This approach is based on the design of a set of estimators running in parallel in the same dimension than the original system. Each estimator uses the knowledge of the first two derivatives of the o...
-
作者：Adu, Daniel Owusu; Basar, Tamer; Gharesifard, Bahman
作者单位：Queens University - Canada; University of Illinois System; University of Illinois Urbana-Champaign; University of California System; University of California Los Angeles
摘要：We consider a setting where two noncooperative players optimally influence the evolution of an initial spatial probability in a game-theoretic hierarchical fashion (Stackelberg differential game), so that at a specific final time the distribution of the state matches a given final target measure. We provide a sufficient condition for the existence and uniqueness of an optimal transport map and prove that it can be characterized as the gradient of some convex function. An important by-product o...
-
作者：Li, Jia-Wang
作者单位：Ningbo University
摘要：This article investigates the control problems of tracking and stabilization simultaneously for nonholonomic mobile robots subjected to input constraints and parameter uncertainties. A saturated time-varying controller is developed by applying a novel error state modification with bounded auxiliary variables. To improve the estimation performance of unknown kinematic and dynamic parameters, two projection-type adaptation laws are presented, while radial basis function approximations are used t...
-
作者：Ye, Maojiao; Yin, Jizhao; Yin, Le
作者单位：Nanjing University of Science & Technology; Southwest University - China
摘要：The design of distributed Nash equilibrium-seeking strategies for games in which the involved players are of second-order integrator-type dynamics is investigated in this article. Noticing that velocity signals are usually noisy or not available for feedback control in practical engineering systems, this article supposes that the velocity signals are not accessible for the players. To deal with the absence of velocity measurements, two estimators are designed. The first estimator is establishe...
-
作者：Isohatala, Jukka; Haskell, William B.
作者单位：National University of Singapore; Purdue University System; Purdue University
摘要：We present a probabilistic formulation of risk aware optimal control problems for stochastic differential equations. Risk awareness is in our framework captured by objective functions in which the risk neutral expectation is replaced by a risk function, a nonlinear functional of random variables that accounts for the controller's risk preferences. We state and prove a risk aware minimum principle that gives necessary and sufficient conditions for optimality of generalized control processes tak...
-
作者：Lee, Donghwan
作者单位：Korea Advanced Institute of Science & Technology (KAIST)
摘要：The goal of this article is to investigate new and simple convergence analysis of dynamic programming for the linear-quadratic regulator problem of discrete-time linear time-invariant systems. In particular, bounds on errors are given in terms of both matrix inequalities and matrix norm. Under a mild assumption on the initial parameter, we prove that the Q-value iteration exponentially converges to the optimal solution. Moreover, a global asymptotic convergence is also presented. These results...
-
作者：Lu, Jianquan; Jiang, Bangxin; Zheng, Wei Xing
作者单位：Southeast University - China; Chengdu University; Western Sydney University
摘要：In this article, the exponential stability of impulsive control systems with time delay is studied. By using the average impulsive interval method, some sufficient Lyapunov-based conditions are established for the stability of impulsive time-delay systems, and the impacts of delay on the stability analysis method are further revealed. It is interesting to show that some unstable impulsive time-delay systems may be stabilized by increasing the time delay in continuous dynamics. More interesting...
