Automatica最新文献_第2页

On stability of model predictive control with finite-control-set constraints and disturbances 论具有有限控制集约束和干扰的模型预测控制的稳定性

IF 4.8 2区计算机科学

Automatica Pub Date : 2024-10-18 DOI: 10.1016/j.automatica.2024.111982

Yimeng Li , Jun Yang , Jinhao Liu , Xinming Wang , Shihua Li

引用次数: 0

Deadzone-Adapted Disturbance Suppression Control for strict-feedback systems 严格反馈系统的死区适应性干扰抑制控制

IF 4.8 2区计算机科学

Automatica Pub Date : 2024-10-16 DOI: 10.1016/j.automatica.2024.111986

Iasson Karafyllis , Miroslav Krstic , Alexandros Aslanidis

引用次数: 0

Time-extended consensus for multi-agent non-interactive collaboration 多代理非交互式协作的延时共识

IF 4.8 2区计算机科学

Automatica Pub Date : 2024-10-16 DOI: 10.1016/j.automatica.2024.111985

Weiran Yao , Haoyu Tian , Jianxing Liu , Ligang Wu , Yu Sun

引用次数: 0

Data-driven stabilization of switched and constrained linear systems 数据驱动的开关和约束线性系统稳定化

IF 4.8 2区计算机科学

Automatica Pub Date : 2024-10-11 DOI: 10.1016/j.automatica.2024.111974

Mattia Bianchi , Sergio Grammatico , Jorge Cortés

引用次数: 0

Schatten-p radius: Optimality criterion and optimization for basic ellipsotopes with application to zonotopes and ellipsoids Schatten-p 半径基本椭球的最优性标准和优化，以及对带状椭球和椭球的应用

IF 4.8 2区计算机科学

Automatica Pub Date : 2024-10-11 DOI: 10.1016/j.automatica.2024.111926

Chengrui Wang, Houde Liu, Sanchuan Chen, Feng Xu

引用次数: 0

Randomized greedy methods for weak submodular sensor selection with robustness considerations 考虑鲁棒性的弱亚模态传感器选择随机贪婪方法

IF 4.8 2区计算机科学

Automatica Pub Date : 2024-10-09 DOI: 10.1016/j.automatica.2024.111984

Ege Can Kaya , Michael Hibbard , Takashi Tanaka , Ufuk Topcu , Abolfazl Hashemi

{"title":"Randomized greedy methods for weak submodular sensor selection with robustness considerations","authors":"Ege Can Kaya , Michael Hibbard , Takashi Tanaka , Ufuk Topcu , Abolfazl Hashemi","doi":"10.1016/j.automatica.2024.111984","DOIUrl":"10.1016/j.automatica.2024.111984","url":null,"abstract":"<div><div>We study a pair of budget- and performance-constrained weak submodular maximization problems. For computational efficiency, we explore the use of stochastic greedy algorithms which limit the search space via random sampling instead of the standard greedy procedure which explores the entire feasible search space. We propose a pair of stochastic greedy algorithms, namely, <span>Modified Randomized Greedy (MRG)</span> and <span>Dual Randomized Greedy (DRG)</span> to approximately solve the budget- and performance-constrained problems, respectively. For both algorithms, we derive approximation guarantees that hold with high probability. We then examine the use of DRG in robust optimization problems wherein the objective is to maximize the worst-case of a number of weak submodular objectives and propose the <span>Randomized Weak Submodular Saturation Algorithm (Random-WSSA)</span>. We further derive a high-probability guarantee for when <span>Random-WSSA</span> successfully constructs a robust solution. Finally, we showcase the effectiveness of these algorithms in a variety of relevant uses within the context of Earth-observing LEO constellations which estimate atmospheric weather conditions and provide Earth coverage.</div></div>","PeriodicalId":55413,"journal":{"name":"Automatica","volume":"171 ","pages":"Article 111984"},"PeriodicalIF":4.8,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142421290","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

Control of max-plus linear systems using feedback cycle shaping 利用反馈周期整形控制最大加线性系统

IF 4.8 2区计算机科学

Automatica Pub Date : 2024-10-09 DOI: 10.1016/j.automatica.2024.111980

Vinicius Mariano Gonçalves , Prashanth Krishnamurthy , Anthony Tzes , Farshad Khorrami

引用次数: 0

OL-NE for LQ differential games: A Port-Controlled Hamiltonian system perspective and some computational strategies LQ 微分博弈的 OL-NE：端口控制哈密尔顿系统视角和一些计算策略

IF 4.8 2区计算机科学

Automatica Pub Date : 2024-10-09 DOI: 10.1016/j.automatica.2024.111953

Mario Sassano , Thulasi Mylvaganam , Alessandro Astolfi

{"title":"OL-NE for LQ differential games: A Port-Controlled Hamiltonian system perspective and some computational strategies","authors":"Mario Sassano , Thulasi Mylvaganam , Alessandro Astolfi","doi":"10.1016/j.automatica.2024.111953","DOIUrl":"10.1016/j.automatica.2024.111953","url":null,"abstract":"<div><div>Linear Quadratic differential games and their Open-Loop Nash Equilibrium (OL-NE) strategies are studied with a threefold objective. First, it is shown that the state/costate lifted system (arising from the application of Pontryagin’s Minimum Principle) is such that its behaviour restricted to the <em>equilibrium subspace</em> can be interpreted as the (non-power-preserving) interconnection of two cyclo-passive Port-Controlled Hamiltonian systems. Such PCH systems constitute the <em>best response</em> generators for each player, thus mimicking and extending the corresponding interpretation of (single-player) optimal control problems. Second, by realizing that the behaviour of the lifted dynamics <em>off</em> the equilibrium subspace is “irrelevant” for generating the equilibrium strategies, it is shown that such an invariant subspace can be rendered, via a suitably constructed virtual input, externally asymptotically stable while preserving the OL-NE. Finally, based on these premises we provide a closed-form gradient-descent method to solve the asymmetric coupled Riccati equations characterizing the OL-NE strategies.</div></div>","PeriodicalId":55413,"journal":{"name":"Automatica","volume":"171 ","pages":"Article 111953"},"PeriodicalIF":4.8,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142421277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hierarchical lane-changing control for vehicle platoons in prescribed performance 规定性能下车辆排的分层变道控制

IF 4.8 2区计算机科学

Automatica Pub Date : 2024-10-09 DOI: 10.1016/j.automatica.2024.111972

Wei-Wei Che , Lili Zhang , Chao Deng , Zheng-Guang Wu

{"title":"Hierarchical lane-changing control for vehicle platoons in prescribed performance","authors":"Wei-Wei Che , Lili Zhang , Chao Deng , Zheng-Guang Wu","doi":"10.1016/j.automatica.2024.111972","DOIUrl":"10.1016/j.automatica.2024.111972","url":null,"abstract":"<div><div>This paper proposes a hierarchical control approach to solve the prescribed performance lane-changing control problem for nonlinear vehicle platoons. By incorporating the collision avoidance and comfort assurance conditions specifically tailored for vehicle platoons, the value range of the safe lane-changing completion time (LCCT) can be calculated. Based on which, the longitudinal and lateral reference displacements are determined for the leader vehicle, respectively. Further, to safely achieve the prescribed performance lane changing in the operational layer, a class of more practical performance functions is designed based on the calculated LCCT as the key technology for proposing the neural network longitudinal and lateral control protocols. The developed lane-changing control strategies guarantee that the vehicle platoon can track the obtained reference trajectory while avoiding inter-platoon and intra-platoon collisions. Furthermore, the safe lane-changing maneuver can be achieved within the predefined LCCT with the preset accuracy. Finally, the availability of the proposed hierarchical algorithm is checked through two simulation examples with comparisons.</div></div>","PeriodicalId":55413,"journal":{"name":"Automatica","volume":"171 ","pages":"Article 111972"},"PeriodicalIF":4.8,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142421291","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

Lifted time stable inversion based feedforward control for linear non-minimum phase systems 基于提升时间稳定反演的线性非最小相位系统前馈控制

IF 4.8 2区计算机科学

Automatica Pub Date : 2024-10-09 DOI: 10.1016/j.automatica.2024.111979

Xiaoqiang Ji , Shaoqin Zhu , Yangsheng Xu , Richard W. Longman

{"title":"Lifted time stable inversion based feedforward control for linear non-minimum phase systems","authors":"Xiaoqiang Ji , Shaoqin Zhu , Yangsheng Xu , Richard W. Longman","doi":"10.1016/j.automatica.2024.111979","DOIUrl":"10.1016/j.automatica.2024.111979","url":null,"abstract":"<div><div>The feedforward control strategy exhibits substantial capability and high-precision control for output tracking tasks. However, the feedforward control action obtained through solving the inverse problem is unstable for non-minimum phase systems. In this paper, a novel stable inversion method is presented, termed lifted time stable inversion. Compared to the existing method, the proposed method does not necessitate infinite window to accomplish the tracking tasks. A comprehensive analysis of the developed method is provided, focusing on analysis of finite time stability and input–output finite time stability, aspects that have garnered limited attention in the literature on feedforward control. Furthermore, the relationship with existing stable inversion method is illustrated by constructing a linear transformation of the initial conditions for both inversions. Simulation results substantiate the validity of the finite time bounds and demonstrate the superior tracking advantage of the proposed method relative to the existing method. The performance of the proposed method is further displayed experimentally on a piezoelectric ceramic positioning platform.</div></div>","PeriodicalId":55413,"journal":{"name":"Automatica","volume":"171 ","pages":"Article 111979"},"PeriodicalIF":4.8,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142421966","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