3期

最新文章

• An Inversion-Free Iterative Algorithm With a Scalar Tuning Parameter for Coupled Riccati Matrix Equations Arising in LQ Optimal Control of Markov Jump Systems AI翻译
  作者：Jiang, Kaiwen; Li, Zhi; Zhang, Ying
  作者单位：Harbin Institute of Technology
  摘要：In this article, iterative algorithms are investigated to solve the Riccati algebraic matrix equations arising in the context of linear quadratic (LQ) optimal control of discrete-time Markov jump systems. By using the matrix inversion lemma, an equivalent form for the considered coupled Riccati matrix equation is constructed, and then two intermediate variables are introduced to further construct a new equivalent form in order to avoid the operation of matrix inversion. With the aid of the obt...
• Balancing Application Relevant and Sparsity Revealing Excitation in Input Design AI翻译
  作者：Parsa, Javad; Rojas, Cristian R.; Hjalmarsson, Hakan
  作者单位：Royal Institute of Technology
  摘要：The maximum absolute correlation between regressors, which is called mutual coherence, plays an essential role in sparse estimation. A regressor matrix whose columns are highly correlated may result from optimal input design, since there is no constraint on the mutual coherence, making it difficult to handle sparse estimation. This article aims to tackle this issue for fixed denominator models, which include Laguerre, Kautz, and generalized orthonormal basis function expansion models, for exam...
• Strong Lyapunov Functions for Linear Time-Varying Systems Under Persistency of Excitation AI翻译
  作者：Verrelli, Cristiano Maria; Tomei, Patrizio
  作者单位：University of Rome Tor Vergata
  摘要：Linear time-varying differential equations that arise in the study of model reference adaptive identification problems are studied in both the continuous-time and the discrete-time frameworks. The original contribution of the article is to present two new strong Lyapunov functions (e.g., Lyapunov functions with negative definite derivative), assessing global uniform asymptotic stability properties under the classical persistency of excitation condition. The first Lyapunov function, in the cont...
• Output-Feedback Stabilization of an Underactuated Network of N Interconnected n plus m Hyperbolic PDE Systems AI翻译
  作者：Auriol, Jean
  作者单位：Universite Paris Saclay; Centre National de la Recherche Scientifique (CNRS)
  摘要：In this article, we detail the design of an output feedback stabilizing control law for an underactuated network of N subsystems of n+m heterodirectional linear first-order hyperbolic partial differential equations interconnected through their boundaries. The network has a chain structure, as only one of the subsystems is actuated. The available measurements are located at the opposite extremity of the chain. The proposed approach introduces a new type of integral transformation to tackle in-d...
• Asynchronous Speedup in Decentralized Optimization AI翻译
  作者：Even, Mathieu; Hendrikx, Hadrien; Massoulie, Laurent
  作者单位：Universite PSL; Ecole Normale Superieure (ENS); Swiss Federal Institutes of Technology Domain; Ecole Polytechnique Federale de Lausanne; Universite PSL; Ecole Normale Superieure (ENS)
  摘要：In decentralized optimization, nodes of a communication network each possess a local objective function, and communicate using gossip-based methods in order to minimize the average of these per-node functions. While synchronous algorithms are heavily impacted by a few slow nodes or edges in the graph (the straggler problem), their asynchronous counterparts are notoriously harder to parameterize. Indeed, their convergence properties for networks with heterogeneous communication and computation ...
• Global Coordinated Stabilization of Multiple Simple Mechanical Control Systems on a Class of Lie Groups AI翻译
  作者：Tong, Xin; Ding, Qingpeng; Cheng, Shing Shin
  作者单位：Nanjing University; Chinese University of Hong Kong; Chinese University of Hong Kong; Chinese University of Hong Kong
  摘要：This article investigates the problem of global coordinated stabilization for a multiagent system, which consists of a general class of mechanical systems that evolve on compact connected Lie groups. First, a distributed synergistic hybrid controller is synthesized by leveraging a coadjoint incidence matrix to assign to neighboring agents a hybrid feedback that is based on their relative position. It leads to robust and global asymptotic stability in tree networks. Second, the existence of syn...
• Aperiodic Event-Triggered Controls for Stochastic Functional Differential Systems With Sampled-Data Delayed Output AI翻译
  作者：Yang, Xuetao; Zhao, Taizhong; Zhu, Quanxin
  作者单位：Nanjing University of Posts & Telecommunications; Hunan Normal University; Hunan Normal University
  摘要：In this article, we discuss the stabilization problem for stochastic functional differential systems (SFDSs) with sampled-data delayed output. Different from the traditional stochastic systems with continuous or periodic output signals, the system output measurements under consideration are only available at sampling times and they are aperiodic. To deal with this problem, we propose a compensator for the unmeasurable system states and a novel aperiodic event-triggered control (AETC) based on ...
• PEBO-SLAM: Observer Design for Visual Inertial SLAM With Convergence Guarantees AI翻译
  作者：Yi, Bowen; Jin, Chi; Wang, Lei; Shi, Guodong; Ila, Viorela; Manchester, Ian R.
  作者单位：Universite de Montreal; Polytechnique Montreal; Universite de Montreal; Zhejiang University; University of Sydney
  摘要：In this article, we introduce a new parameterization for the problem of visual inertial simultaneous localization and mapping (VI-SLAM), i.e., for a robot only equipped with a single monocular camera and an inertial measurement unit. In this problem, the system state evolves on the nonlinear manifold SE(3)xR(3n), on which we design dynamic extensions such that the deterministic VI-SLAM problem can be reformulated-without any approximation-into online constant parameter identification, expresse...
• Log-Barrier Search for Structural Linear Quadratic Regulators AI翻译
  作者：Yang, Nachuan; Tang, Jiawei; Li, Yuzhe; Shi, Guodong; Shi, Ling
  作者单位：Hong Kong University of Science & Technology; Northeastern University - China; University of Sydney
  摘要：This article studies the design of linear quadratic regulators (LQR) subject to structural constraints, which remains an NP-hard open problem. Both state-feedback and static output-feedback cases are investigated. Instead of using case-by-case relaxation techniques, we propose a tractable first-order method to solve this structural optimal control problem. More specifically, we equivalently reformulate it as a constrained optimization and characterize its first-order optimality condition via K...
• Predictability Verification of Fault Patterns in Labeled Petri Nets AI翻译
  作者：Cong, Xuya; Yu, Zhenhua; Fanti, Maria Pia; Mangini, Agostino Marcello; Li, Zhiwu
  作者单位：Xi'an University of Science & Technology; Politecnico di Bari; Macau University of Science and Technology
  摘要：This article focuses on the predictability verification problem of fault patterns for both bounded and unbounded discrete event systems modeled with labeled Petri nets. A system is said to be predictable with respect to a fault pattern if any complete fault behavior in a fault pattern can be correctly predicted before its occurrence, where the fault patterns are characterized by a particular composition of a labeled Petri net with a fault pattern net. In this article, we construct a fault patt...