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作者：Hespanhol, Pedro; Porter, Matthew; Vasudevan, Ramanarayan; Aswani, Anil
作者单位：University of California System; University of California Berkeley; University of Michigan System; University of Michigan
摘要：Control system security is enhanced by the ability to detect malicious attacks on sensor measurements. Dynamic watermarking can detect such attacks on linear time-invariant systems. However, existing theory focuses on attack detection and not on the use of watermarking in conjunction with attack mitigation strategies. In this article, we study the problem of switching between two sets of sensors: One set of sensors has high accuracy but is vulnerable to attack, whereas the second set of sensor...
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作者：Halperin, Ido; Agranovich, Grigory; Lew, Beni
作者单位：Ariel University; Ariel University; VOLCANI INSTITUTE OF AGRICULTURAL RESEARCH
摘要：Bilinear state-space models, a type of simple nonlinear model, have different applications. Optimal control of such models is often used for performance improvement. A solution for a new class of optimization problem, which is defined as inhomogeneous discrete-time bilinear plant with control trajectory constraints and a biquadratic performance index, is presented. Krotov's method is used for computing a candidate solution for this problem. A suitable sequence of improving functions, which are...
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作者：Jonker, Jonathan; Zheng, Peng; Aravkin, Aleksandr Y.
作者单位：University of Washington; University of Washington Seattle; University of Washington; University of Washington Seattle
摘要：Dynamic inference problems in autoregressive (AR/ARMA/ARIMA), exponential smoothing, and navigation are often formulated and solved using state-space models (SSMs), which allow a range of statistical distributions to inform innovations and errors. In many applications, the main goal is to identify not only the hidden state, but also additional unknown model parameters (e.g., AR coefficients or unknown dynamics). We show how to efficiently optimize over model parameters in SSM that use smooth p...
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作者：Ortega, Romeo; Nuno, Emmanuel; Bobtsov, Alexey
作者单位：Instituto Tecnologico Autonomo de Mexico; ITMO University; Universidad de Guadalajara
摘要：A novel approach to solve the problem of distributed state estimation of linear time-invariant systems is proposed in this article. It relies on the application of parameter-estimation-based observers, where the state observation task is reformulated as a parameter estimation problem. In contrast with existing results, our solution achieves convergence in finite time, without injection of high gain, and imposes very weak assumptions on the communication graph-namely, the existence of an open H...
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作者：Shao, Jinliang; Zheng, Wei Xing; Shi, Lei; Cheng, Yuhua
作者单位：University of Electronic Science & Technology of China; Shenzhen Institute of Artificial Intelligence & Robotics for Society; Western Sydney University
摘要：In this article, we investigate leader-follower flocking for the Cucker-Smale model with lossy links and general weight functions. Here, the loss phenomenon of the control packages from the controller to the actuator is characterized by a Bernoulli stochastic variable and the edge weights of the interaction network are determined by a general update rule based on the distance between agents. A method based on the products of substochastic matrices is developed to analyze the flocking behavior ...
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作者：Jin, Li; Cicic, Mladen; Johansson, Karl H.; Amin, Saurabh
作者单位：Shanghai Jiao Tong University; Shanghai Jiao Tong University; New York University; New York University Tandon School of Engineering; Royal Institute of Technology; Massachusetts Institute of Technology (MIT); Massachusetts Institute of Technology (MIT)
摘要：Platooning of connected and autonomous vehicles (CAVs) has a significant potential for throughput improvement. However, the interaction between CAVs and non-CAVs may limit the practically attainable improvement due to platooning. To better understand and address this limitation, we introduce a new fluid model of mixed-autonomy traffic flow and use this model to analyze and design platoon coordination strategies. We propose a tandem-link fluid model that considers randomly arriving platoons sha...
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作者：Baldi, Simone; Azzollini, Ilario A.; Ioannou, Petros A.
作者单位：Southeast University - China; Delft University of Technology; University of Bologna; University of Southern California
摘要：Current approaches to the cooperative control of network systems are based on a priori knowledge about the (follower) system dynamics: either the dynamics are known, or assumed to be minimum phase, or initial stabilizing controllers are available for each system. The purpose of this article is to show that for single-input single-output systems (SISO) the above assumptions can be relaxed. We propose an indirect adaptive methodology that does not require the knowledge of the parameters of the s...
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作者：Zorzi, Mattia
作者单位：University of Padua
摘要：We consider the optimal transport problem between multivariate Gaussian stationary stochastic processes. The transportation effort is the variance of the filtered discrepancy process. The main contribution of this article is to show that the corresponding solution leads to a weighted Hellinger distance between multivariate power spectral densities. Then, we propose a spectral estimation approach in the case of indirect measurements, which is based on this distance.
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作者：Schlueter, Henning; Solowjow, Friedrich; Trimpe, Sebastian
作者单位：University of Stuttgart; Max Planck Society; RWTH Aachen University
摘要：When models are inaccurate, the performance of model-based control will degrade. For linear quadratic control, an event-triggered learning framework is proposed that automatically detects inaccurate models and triggers the learning of a new process model when needed. This is achieved by analyzing the probability distribution of the linear quadratic cost and designing a learning trigger that leverages Chernoff bounds. In particular, whenever empirically observed cost signals are located outside...
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作者：Sun, Chao; Hu, Guoqiang
作者单位：Nanyang Technological University
摘要：In this article, we propose centralized and distributed continuous-time penalty methods to find a Nash equilibrium for a generalized noncooperative game with shared inequality and equality constraints and private inequality constraints that depend on the player itself. By using the l(1) penalty function, we prove that the equilibrium of a differential inclusion is a normalized Nash equilibrium of the original generalized noncooperative game, and the centralized differential inclusion exponenti...
