Automatica最新文献_第10页

Sampled-data observer-based exponential stabilization of nonlinear systems with an application to tumor control 基于采样数据观测器的非线性系统指数镇定及其在肿瘤控制中的应用

IF 5.9 2区计算机科学

Automatica Pub Date : 2026-03-01 Epub Date: 2025-12-19 DOI: 10.1016/j.automatica.2025.112752

Chiara Romano , Alessandro Borri , Mario Di Ferdinando , Maria Domenica Di Benedetto , Pierdomenico Pepe

{"title":"Sampled-data observer-based exponential stabilization of nonlinear systems with an application to tumor control","authors":"Chiara Romano , Alessandro Borri , Mario Di Ferdinando , Maria Domenica Di Benedetto , Pierdomenico Pepe","doi":"10.1016/j.automatica.2025.112752","DOIUrl":"10.1016/j.automatica.2025.112752","url":null,"abstract":"<div><div>Ensuring stability in control systems with incomplete state information poses a significant challenge. This paper addresses this issue for nonlinear systems by leveraging the power of state observers and fast sampling. We demonstrate the following result: if the linearized system exhibits the standard structural properties of stabilizability and detectability, then the sampled-data Euler emulation of a continuous-time (Luenberger) observer-based stabilizer, designed for the linear continuous-time system, also guarantees local exponential convergence to the origin of the nonlinear system state, provided that sampling is sufficiently fast. While the result may seem expected, our work moves beyond conjecture by providing a rigorous proof that establishes this convergence under minimal assumptions. Unlike many approaches that require numerous strong assumptions for global guarantees, we forgo these requirements and accept a local result, which is still valuable in applications where understanding the system behavior around specific points is crucial. As an illustrative example, we show an application of the method to the control of the Hahnfeldt’s model of colon tumor angiogenesis, showing the potential and effectiveness of the proposed approach.</div></div>","PeriodicalId":55413,"journal":{"name":"Automatica","volume":"185 ","pages":"Article 112752"},"PeriodicalIF":5.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145799652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Non-invasive chaos control based on 2-contraction stabilizability 基于2-收缩稳定性的无创混沌控制

IF 5.9 2区计算机科学

Automatica Pub Date : 2026-03-01 Epub Date: 2025-12-19 DOI: 10.1016/j.automatica.2025.112778

David Angeli , Davide Martini , Giacomo Innocenti , Alberto Tesi

引用次数: 0

Trajectory-informed machine learning for quantum optimal control of uncertain systems 不确定系统量子最优控制的轨迹信息机器学习

IF 5.9 2区计算机科学

Automatica Pub Date : 2026-03-01 Epub Date: 2025-12-19 DOI: 10.1016/j.automatica.2025.112756

Ali Wadi, Kyriakos G. Vamvoudakis

引用次数: 0

A novel cyber attack design scheme based on system subspace analysis 一种新的基于系统子空间分析的网络攻击设计方案

IF 5.9 2区计算机科学

Automatica Pub Date : 2026-03-01 Epub Date: 2025-12-23 DOI: 10.1016/j.automatica.2025.112769

Zhuyuan Li , Steven X. Ding , Linlin Li , Ying Yang

{"title":"A novel cyber attack design scheme based on system subspace analysis","authors":"Zhuyuan Li , Steven X. Ding , Linlin Li , Ying Yang","doi":"10.1016/j.automatica.2025.112769","DOIUrl":"10.1016/j.automatica.2025.112769","url":null,"abstract":"<div><div>This article investigates the analysis and design of cyber attacks in the unified control and detection framework for cyber–physical systems (CPSs). Based on the Bezout identity, it is proved that there exists a one-to-one mapping between the I/O signals and I/O residuals. The input residual and output residual depend on cyber attacks and plant faults respectively, which is a major difference between these two factors impairing systems. Moreover, it is concluded that cyber attacks compromise the I/O signals within the plant’s image subspace. To facilitate strictly stealthy attack design, a novel image attack with a latent variable to be designed is proposed, decoupling the realization of attack objectives from stealthiness conditions. It is worth pointing out that the image attack parameterizes strictly stealthy attacks undetectable to any observer-based detector and affects the plant in the form of altering the input residual. Further, an offline attack intended to modify system operation points and an online attack aimed at moving system states to desired ones are presented to illustrate the advantages of the image attack model. Finally, a case study is demonstrated on the longitudinal flight control system to validate the proposed scheme.</div></div>","PeriodicalId":55413,"journal":{"name":"Automatica","volume":"185 ","pages":"Article 112769"},"PeriodicalIF":5.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145822798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Online distributed algorithms for mixed equilibrium problems in dynamic environments 动态环境下混合平衡问题的在线分布式算法

IF 5.9 2区计算机科学

Automatica Pub Date : 2026-03-01 Epub Date: 2025-12-23 DOI: 10.1016/j.automatica.2025.112771

Hang Xu , Kaihong Lu , Yu-Long Wang , Qixin Zhu

{"title":"Online distributed algorithms for mixed equilibrium problems in dynamic environments","authors":"Hang Xu , Kaihong Lu , Yu-Long Wang , Qixin Zhu","doi":"10.1016/j.automatica.2025.112771","DOIUrl":"10.1016/j.automatica.2025.112771","url":null,"abstract":"<div><div>In this paper, the mixed equilibrium problem with coupled inequality constraints in dynamic environments is solved by employing a multi-agent system, where each agent only has access to its own bifunction, its own constraint function, and can communicate with its immediate neighbors via a time-varying digraph. At each time, the goal of agents is to cooperatively find a point in the constraint set such that the sum of local bifunctions with a free variable is non-negative. Different from existing works, here the bifunctions and the constraint functions are time-varying and only available to agents after decisions are made. To tackle this problem, first, an online distributed algorithm involving the accurate gradient information is proposed based on mirror descent algorithms and primal–dual strategies. Of particular interest is that dynamic regrets, whose offline benchmarks are to find the solution at each time, are employed to measure the performance of the algorithm. Under mild assumptions on the graph and the bifunctions, we prove that if the deviation in the solution sequence grows within a certain rate, then both the dynamic regret and the violation of coupled inequality constraints increase sublinearly. Second, considering the case where each agent only has access to a noisy estimate on the accurate gradient, we propose an online distributed algorithm involving the stochastic gradients. The result shows that under the same conditions as in the first case, if the noise distribution satisfies the sub-Gaussian condition, then dynamic regrets, as well as constraint violations, increase sublinearly with high probability. Finally, several simulation examples are presented to corroborate the validity of our results.</div></div>","PeriodicalId":55413,"journal":{"name":"Automatica","volume":"185 ","pages":"Article 112771"},"PeriodicalIF":5.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145822799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hierarchical distributed optimal cluster formation control for MASs with predefined-time convergence via hybrid zero-sum-game strategy 基于混合零和博弈策略的具有预定义收敛时间的MASs分层分布式最优簇形成控制

IF 5.9 2区计算机科学

Automatica Pub Date : 2026-03-01 Epub Date: 2025-12-16 DOI: 10.1016/j.automatica.2025.112750

Hao-Yang Zhu , Xiang-Gui Guo , Li-Ying Hao , Wei-Wei Che , Zheng-Guang Wu

{"title":"Hierarchical distributed optimal cluster formation control for MASs with predefined-time convergence via hybrid zero-sum-game strategy","authors":"Hao-Yang Zhu , Xiang-Gui Guo , Li-Ying Hao , Wei-Wei Che , Zheng-Guang Wu","doi":"10.1016/j.automatica.2025.112750","DOIUrl":"10.1016/j.automatica.2025.112750","url":null,"abstract":"<div><div>This paper addresses the distributed predefined-time optimal cluster formation control problem for nonlinear multi-agent systems (MASs) subject to disturbances and deception attacks (DAs) utilizing a three-player hybrid zero-sum-game (ZSG) strategy. Unlike conventional distributed designs that tightly couple agents’ collaboration with individual control rules, the proposed hierarchical framework decouples these regulations and divides the control design into two layers, i.e., a distributed estimator layer and a local optimal control layer. First, a predefined-time distributed target estimator is constructed for each follower to reconstruct the group leader’s position within a predefined settling time. Benefiting from a meticulously designed adaptive coupling gain, the proposed estimator is fully distributed without depending on any global information of the communication topology. Second, a game-based optimal control strategy is designed for each agent such that the desired cluster formation pattern can be achieved in a predefined time. A fuzzy reinforcement learning scheme is developed to approximate the Nash equilibrium solution of the formulated hybrid-ZSG strategy. It is worth mentioning that, unlike existing three-player hybrid-ZSG strategies that rely on the output information of neighboring agents, the equilibrium solution of the proposed strategy depends solely on each agent’s own state information, thereby effectively decoupling the strategies of neighboring agents. Finally, numerical simulations validate the effectiveness and superiority of the proposed approach.</div></div>","PeriodicalId":55413,"journal":{"name":"Automatica","volume":"185 ","pages":"Article 112750"},"PeriodicalIF":5.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145799604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A closed-form avoidance control for safe maneuvering of multiple car-like vehicles 多车型车辆安全机动的闭式避碰控制

IF 5.9 2区计算机科学

Automatica Pub Date : 2026-03-01 Epub Date: 2025-12-18 DOI: 10.1016/j.automatica.2025.112764

Wenxue Zhang , Ali Hajbabaie , Massinissa Amrouche , Yichuan Li , Dusan M. Stipanovic

{"title":"A closed-form avoidance control for safe maneuvering of multiple car-like vehicles","authors":"Wenxue Zhang , Ali Hajbabaie , Massinissa Amrouche , Yichuan Li , Dusan M. Stipanovic","doi":"10.1016/j.automatica.2025.112764","DOIUrl":"10.1016/j.automatica.2025.112764","url":null,"abstract":"<div><div>This paper presents a novel closed-form feedback control design with mathematically proven collision-free maneuvers for four-wheel car-like vehicles. New avoidance and switching functions are constructed to avoid various types of obstacles as well as obey road motion constraints. The key distinction lies in the activation of avoidance control, which is triggered based on the derivative of the collision risk assessment function, rather than relying on the assessment function itself. This strategy mitigates overly conservative avoidance maneuvers while maintaining system safety with no compromise. Auxiliary trajectory with avoidance information feedback is established to balance tracking and avoidance. Furthermore, the inclusion of relative motion information in the switching functions not only makes the avoidance response smoother but also improves the overall dynamic performance. In technical terms and contributions, this paper offers theoretical guarantees for system stability and safety through Lyapunov analysis. The effectiveness of the proposed algorithm is further demonstrated through two examples: one showcasing cooperative avoidance in a dense obstacle environment, and the other highlighting safe overtaking and passing on a curved road.</div></div>","PeriodicalId":55413,"journal":{"name":"Automatica","volume":"185 ","pages":"Article 112764"},"PeriodicalIF":5.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145799644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Networked competitive bivirus SIS spread with higher order interactions 网络化竞争双病毒SIS以高阶相互作用传播

IF 5.9 2区计算机科学

Automatica Pub Date : 2026-03-01 Epub Date: 2025-12-29 DOI: 10.1016/j.automatica.2025.112799

Sebin Gracy , Brian D.O. Anderson , Mengbin Ye , César A. Uribe

{"title":"Networked competitive bivirus SIS spread with higher order interactions","authors":"Sebin Gracy , Brian D.O. Anderson , Mengbin Ye , César A. Uribe","doi":"10.1016/j.automatica.2025.112799","DOIUrl":"10.1016/j.automatica.2025.112799","url":null,"abstract":"<div><div>The paper studies the simultaneous spread of two competing viruses over a network of population nodes with higher-order interactions (HOI), using a continuous-time time-invariant competitive bivirus networked susceptible–infected–susceptible (SIS) system. In this paper, by HOI, we mean interactions among group sizes of no more than three nodes. The first key contribution is to establish several important general properties for generic systems. Namely, there are a finite number of equilibria, each equilibrium is nondegenerate, and the system is a strongly monotone dynamical system. Put together, we establish that for almost all initial conditions, the system will converge to a stable equilibrium (of which there may be many). We then turn our focus to characterizing the existence and stability of the equilibria of this system, which are (i) the disease-free equilibrium (DFE), (ii) single-virus endemic equilibria, and (iii) coexistence equilibria (where both viruses are present). We present a range of conditions on the existence or nonexistence of various equilibria. Two key features underpin our results: First, we substantially relax the connectivity conditions of the network relative to existing literature. More specifically, for securing several important general properties for generic systems, we do <em>not</em> require strong connectivity of the standard pairwise interaction graph. Second, we identify dynamical phenomena, including multiple stable equilibria, which are known to be impossible without HOI. The latter illustrates the novel insights that are obtained by including HOI into models of epidemic spread. Finally, we illustrate our results using a real-world large-scale network.</div></div>","PeriodicalId":55413,"journal":{"name":"Automatica","volume":"185 ","pages":"Article 112799"},"PeriodicalIF":5.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145884867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Backstepping-based fault-tolerant control for strict-feedback nonlinear multi-agent systems: An encoding–decoding scheme 基于退步的严格反馈非线性多智能体系统容错控制：一种编解码方案

IF 5.9 2区计算机科学

Automatica Pub Date : 2026-03-01 Epub Date: 2025-12-22 DOI: 10.1016/j.automatica.2025.112800

Chao Zhou, Zehui Mao, Bin Jiang

{"title":"Backstepping-based fault-tolerant control for strict-feedback nonlinear multi-agent systems: An encoding–decoding scheme","authors":"Chao Zhou, Zehui Mao, Bin Jiang","doi":"10.1016/j.automatica.2025.112800","DOIUrl":"10.1016/j.automatica.2025.112800","url":null,"abstract":"<div><div>In this paper, the fault-tolerant consensus tracking control problem is investigated for a class of discrete-time strict-feedback nonlinear multi-agent systems with sensor faults. The sensor faults are described by the first-order difference equations. By leveraging the augmented state observer structure, an auxiliary nonlinear system is first constructed in a non-strict feedback form, based on which a backstepping-based control framework is established. The consensus tracking errors are directly incorporated into the virtual control to preserve the distributed structure of the controller. Furthermore, in order to alleviate the communication burden and enhance the transmission security, an encoding–decoding scheme is adopted during the information exchange among agents. Accordingly, an encoding–decoding-based distributed controller is proposed, guaranteeing that the output tracking error is uniformly ultimately bounded and the transmitted data is conditionally bounded. Finally, a numerical example is provided to validate the effectiveness of the proposed backstepping-based control framework.</div></div>","PeriodicalId":55413,"journal":{"name":"Automatica","volume":"185 ","pages":"Article 112800"},"PeriodicalIF":5.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145841796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamic mode decomposition of higher order systems 高阶系统的动态模态分解

IF 5.9 2区计算机科学

Automatica Pub Date : 2026-03-01 Epub Date: 2025-12-22 DOI: 10.1016/j.automatica.2025.112776

Joel A. Rosenfeld , Benjamin P. Russo , Rushikesh Kamalapurkar

引用次数: 0