2021

最新文章

• Observer-Based Fault-Tolerant Spacecraft Attitude Tracking Using Sequential Lyapunov Analyses AI翻译
  作者：Gui, Haichao
  作者单位：Beihang University
  摘要：The spacecraft attitude tracking problem is addressed with actuator faults and uncertainties among inertias, external disturbances, and, in particular, state estimates. A continuous sliding-mode attitude controller is designed using attitude and angular velocity estimates from an arbitrary stable stand-alone observer. Rigorous analysis shows that the controller ensures robust stability of the entire closed-loop system as long as the observer yields state estimates with uniformly ultimately bou...
• Sparse False Injection Attacks Reconstruction via Descriptor Sliding Mode Observers AI翻译
  作者：Ma, Renjie; Shi, Peng; Wu, Ligang
  作者单位：Harbin Institute of Technology; University of Adelaide
  摘要：Cyber-physical systems (CPSs), acting as the backbone of Industrial 4.0, may suffer from false injection attacks launched by adversary for degrading system performances. In this article, we concentrate on investigating secure reconstruction of CPSs. First, the combinational attack mode is potentially identified by means of adaptive counteraction searching. Next, the sparse injection attacks are effectively reconstructed while ensuring the correctness of state estimation in the light of full-or...
• Escort Function Definitions for Feasible Region Flexibility in Applications of Replicatorlike Dynamics With Constraints AI翻译
  作者：Ovalle, Andres; Hably, Ahmad; Bacha, Seddik
  作者单位：Communaute Universite Grenoble Alpes; Institut National Polytechnique de Grenoble; Universite Grenoble Alpes (UGA); Centre National de la Recherche Scientifique (CNRS)
  摘要：This articleproposes an extension to a family of evolutionary game dynamics called escort replicator dynamics (ERD), defined by (Harper, 2011) based on information-geometric concepts. Specifically, the objective of this article is to propose three types of convenient so-called escort functionsand evaluate the stability of ERD under the use of these functions. Since it is proven that ERD is stable using the proposed definitions, ERD is able to confine trajectories of the state vector in regions...
• Recursive Filtering With Measurement Fading: A Multiple Description Coding Scheme AI翻译
  作者：Wang, Licheng; Wang, Zidong; Shen, Bo; Wei, Guoliang
  作者单位：University of Shanghai for Science & Technology; Brunel University; Donghua University; University of Shanghai for Science & Technology
  摘要：In this article, the recursive filtering problem is studied for a class of discrete-time nonlinear stochastic systems subject to fading measurements. In order to facilitate the data transmission in a resource-constrained communication network, the multiple description coding scheme is adopted to encode the fading measurements into two descriptions with the identical importance. Two independent Bernoulli distributed random variables are introduced to govern the occurrences of the packet dropout...
• Sensor Switching Control Under Attacks Detectable by Finite Sample Dynamic Watermarking Tests AI翻译
  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...
• Fault-Tolerant Funnel Control for Uncertain Linear Systems AI翻译
  作者：Berger, Thomas
  作者单位：University of Paderborn
  摘要：We study adaptive fault-tolerant tracking control for uncertain linear systems. Based on recent results in funnel control, and the time-varying Byrnes-Isidori form, we develop a low-complexity model-free controller that achieves prescribed performance of the tracking error for any given sufficiently smooth reference signal. Within the considered system class, we allow for more inputs than outputs as long as a certain redundancy of the actuators is satisfied. An important role in the controller...
• A Gauss-Newton-Like Hessian Approximation for Economic NMPC AI翻译
  作者：Zanon, Mario
  作者单位：IMT School for Advanced Studies Lucca
  摘要：Economic model predictive control (EMPC) has recently become popular because of its ability to control constrained nonlinear systems while explicitly optimizing a prescribed performance criterion. Large performance gains have been reported for many applications and closed-loop stability has been recently investigated. However, computational performance still remains an open issue and only few contributions have proposed real-time algorithms tailored to EMPC. We perform a step towards computati...
• Structural Balance via Gradient Flows Over Signed Graphs AI翻译
  作者：Cisneros-Velarde, Pedro Arturo; Friedkin, Noah E.; Proskurnikov, Anton, V; Bullo, Francesco
  作者单位：University of California System; University of California Santa Barbara; Polytechnic University of Turin; Russian Academy of Sciences
  摘要：Structural balance is a classic property of signed graphs satisfying Heider's seminal axioms. Mathematical sociologists have studied balance theory since its inception in the 1940s. Recent research has focused on the development of dynamic models explaining the emergence of structural balance. In this article, we introduce a novel class of parsimonious dynamic models for structural balance based on an interpersonal influence process. Our proposed models are gradient flows of an energy function...
• Ergodic Opinion Dynamics Over Networks: Learning Influences From Partial Observations AI翻译
  作者：Ravazzi, Chiara; Hojjatinia, Sarah; Lagoa, Constantino M.; Dabbene, Fabrizio
  作者单位：Consiglio Nazionale delle Ricerche (CNR); Istituto di Elettronica e di Ingegneria dell'Informazione e delle Telecomunicazioni (IEIIT-CNR); Polytechnic University of Turin; Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park
  摘要：In this article, we address the problem of inferring direct influences in social networks from partial samples of a class of opinion dynamics. The interest is motivated by the study of several complex systems arising in social sciences, where a population of agents interacts according to a communication graph. These dynamics over networks often exhibit an oscillatory behavior, given the stochastic effects or the random nature of the local interactions process. Inspired by recent results on est...
• Fast Convergence Rates of Distributed Subgradient Methods With Adaptive Quantization AI翻译
  作者：Doan, Thinh T.; Maguluri, Siva Theja; Romberg, Justin
  作者单位：University System of Georgia; Georgia Institute of Technology; University System of Georgia; Georgia Institute of Technology; University System of Georgia; Georgia Institute of Technology
  摘要：We study distributed optimization problems over a network when the communication between the nodes is constrained, and therefore, information that is exchanged between the nodes must be quantized. Recent advances using the distributed gradient algorithm with a quantization scheme at a fixed resolution have established convergence, but at rates significantly slower than when the communications are unquantized. In this article, we introduce a novel quantization method, which we refer to as adapt...