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作者：Mao, Bing; Wu, Xiaoqun; Fan, Ziye; Lu, Jinhu; Chen, Guanrong
作者单位：Shenzhen University; Wuhan University; Beihang University; City University of Hong Kong
摘要：The problem of achieving performance-guaranteed finite-time exact tracking for uncertain strict-feedback nonlinear systems with unknown control directions is addressed. A novel logic switching mechanism with monitoring functions is designed to deal with unknown control directions. This approach is different from existing methods, such as the Nussbaum gain technique and smooth orientation functions, which are inapplicable to finite-time exact tracking. The main challenge lies in designing monit...
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作者：Chen, Xiangyi; Zhu, Feng
作者单位：Zhejiang University of Science & Technology; Nankai University; Nankai University
摘要：We present an adaptive form of the simultaneous long-short (SLS) trading strategy, which employs feedback control principles for stock trading. Prior work established the robust positive expectation (RPE) theorem for the SLS strategy, asserting positive expectations of trading profits for stock prices following geometric Brownian motions with unknown parameters. We extend the RPE property to adaptive SLS strategies, which guarantee strictly positive expected profits even in round-trip price sc...
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作者：Li, Shuai; Wang, Chen; Xie, Guangming
作者单位：Peking University; Peking University; Peking University
摘要：In this article, we study a pursuit-evasion game between two players with heterogeneous kinematics, where the pursuer is with damped double-integrator dynamics and the evader is with single-integrator dynamics. The pursuer aims at capturing the evader as soon as possible, while the evader wants to avoid or delay the capture. Traditional methods to solve pursuit-evasion games rely on the Hamilton-Jacobi-Isaacs (HJI) equations and retrogressive path equations, which are very complicated and noni...
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作者：Krauss, Isabelle; Lopez, Victor G.; Mueller, Matthias A.
作者单位：Leibniz University Hannover
摘要：This article introduces two sample-based formulations of incremental input/output-to-state stability (i-IOSS), a suitable detectability notion for general nonlinear systems. In this work, we consider the case of limited output information, i.e., measurements are only infrequently and/or irregularly available. The output-dependent term of the sample-based i-IOSS bound is properly modified to yield a characterization for detectability in the presence of incomplete output sequences. We provide bo...
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作者：Li, Na; Li, Xun; Xu, Zuo Quan
作者单位：Shandong University of Finance & Economics; Hong Kong Polytechnic University
摘要：In this article, we employ a policy iteration reinforcement learning (RL) method to study continuous-time linear-quadratic mean-field control problems in infinite horizon. The drift and diffusion terms in the dynamics involve the states, the controls, and their conditional expectations. We investigate the stabilizability and convergence of the RL algorithm using a Lyapunov recursion. Instead of solving a pair of coupled Riccati equations, the RL technique focuses on strengthening an auxiliary ...
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作者：Sassano, Mario
作者单位：University of Rome Tor Vergata
摘要：The discrete-time, infinite-horizon linear quadratic regulator (LQR) is studied with the objective of establishing a unified perspective on the problem by relying simultaneously on Dynamic Programming and the discrete Minimum Principle. While it is well known that the two strategies independently yield the optimal solution, it is shown here that their combination provides much deeper insights on the nature of the optimal solution and on the strategies by means of which it can be computed. More...
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作者：Tang, Xuening; Cao, Xianghui; Zheng, Wei Xing
作者单位：Southeast University - China; Southeast University - China; Western Sydney University
摘要：As networked control systems continue to evolve, ensuring the privacy of sensitive data becomes an increasingly pressing concern, especially in situations where the controller is physically separated from the plant. In this article, we propose a secure control scheme for computing linear quadratic control in a networked control system utilizing two networked controllers, a privacy encoder, and a control restorer. Specifically, the encoder generates two state signals blurred with random noise a...
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作者：Chen, Xiaomeng; Huo, Wei; Wu, Yuchi; Dey, Subhrakanti; Shi, Ling
作者单位：Hong Kong University of Science & Technology; Shanghai University; Uppsala University
摘要：Distributed Nash equilibrium (NE) seeking problems for networked games have been widely investigated in recent years. Despite the increasing attention, communication expenditure is becoming a major bottleneck for scaling up distributed approaches within limited communication bandwidth between agents. To reduce communication cost, an efficient event-triggered and compressed distributed NE seeking (ETC-DNES) algorithm is proposed in this article to obtain an NE for games over directed graphs, wh...
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作者：Ji, Ruihang; Ge, Shuzhi Sam
作者单位：National University of Singapore
摘要：In this article, a rate-coded secure control is investigated for the consensus of multiagent systems (MASs). The challenge lies in how to design a broadcasting protocol when the communication bit is critical, and to strengthen its security at the same time. A novel rate-coded algorithm is designed for MASs from an encoding-decoding viewpoint, where only an encrypted L-length codeword, instead of the sensitive system information, is transmitted over the network between each agent and its neighb...
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作者：Li, Yongming; Yu, Kunting; Lv, Maolong; Tong, Shaocheng
作者单位：Liaoning University of Technology; Dalian Maritime University; Air Force Engineering University
摘要：This article tackles the asynchronous cooperative output regulation problem for heterogeneous nonlinear multiagent systems (MASs) characterized by jointly connected switching topologies. Considering the heterogeneity inherent in the MASs, we propose two distributed asynchronous observers. The first observer is developed to estimate the exosystem matrix, and the second is tailored to estimate the exosystem state. To guarantee the estimation accuracy of these observers, we formulate a relationsh...
