Automatica最新文献_第2页

Feedback stability analysis via dissipativity with dynamic supply rates 动态供给率下耗散的反馈稳定性分析

IF 4.8 2区计算机科学

Automatica Pub Date : 2024-12-02 DOI: 10.1016/j.automatica.2024.112000

Sei Zhen Khong , Chao Chen , Alexander Lanzon

{"title":"Feedback stability analysis via dissipativity with dynamic supply rates","authors":"Sei Zhen Khong , Chao Chen , Alexander Lanzon","doi":"10.1016/j.automatica.2024.112000","DOIUrl":"10.1016/j.automatica.2024.112000","url":null,"abstract":"<div><div>We propose a general notion of dissipativity with dynamic supply rates for nonlinear systems. This extends classical dissipativity with static supply rates and dynamic supply rates of miscellaneous quadratic forms. The main results of this paper concern Lyapunov and asymptotic stability analysis for nonlinear feedback dissipative systems that are characterised by dissipation inequalities with respect to compatible dynamic supply rates but involving possibly different and independent auxiliary systems. Importantly, dissipativity conditions guaranteeing stability of the state of the feedback systems, without concerns on the stability of the state of the auxiliary systems, are provided. The key results also specialise to a simple coupling test for the interconnection of two nonlinear systems described by dynamic <span><math><mrow><mo>(</mo><mi>Ψ</mi><mo>,</mo><mi>Π</mi><mo>,</mo><mi>Υ</mi><mo>,</mo><mi>Ω</mi><mo>)</mo></mrow></math></span>-dissipativity, and are shown to recover several existing results in the literature, including small-gain, passivity indices, static <span><math><mrow><mo>(</mo><mi>Q</mi><mo>,</mo><mi>S</mi><mo>,</mo><mi>R</mi><mo>)</mo></mrow></math></span>-dissipativity, dissipativity with terminal costs, etc. Comparison with the input–output approach to feedback stability analysis based on integral quadratic constraints is also made.</div></div>","PeriodicalId":55413,"journal":{"name":"Automatica","volume":"172 ","pages":"Article 112000"},"PeriodicalIF":4.8,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142759489","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

Model-based state estimation for Euler–Lagrange systems and rigid-body robot control 基于模型的欧拉-拉格朗日系统状态估计与刚体机器人控制

IF 4.8 2区计算机科学

Automatica Pub Date : 2024-11-30 DOI: 10.1016/j.automatica.2024.112003

Rolf Johansson

引用次数: 0

On converse zeroing barrier functions 逆归零势垒函数

IF 4.8 2区计算机科学

Automatica Pub Date : 2024-11-29 DOI: 10.1016/j.automatica.2024.112011

Ziliang Lyu , Xiangru Xu , Yiguang Hong , Lihua Xie

引用次数: 0

Identification of FIR Systems with binary-valued observations under replay attacks 重放攻击下具有二值观测值的FIR系统辨识

IF 4.8 2区计算机科学

Automatica Pub Date : 2024-11-28 DOI: 10.1016/j.automatica.2024.112001

Jin Guo , Qingxiang Zhang , Yanlong Zhao

引用次数: 0

Stochastic encryption against stealthy attacks in CPSs: A zero-sum game approach 针对cps中隐形攻击的随机加密：零和游戏方法

IF 4.8 2区计算机科学

Automatica Pub Date : 2024-11-28 DOI: 10.1016/j.automatica.2024.112012

Pengyu Li , Dan Ye

引用次数: 0

Variational unscented Kalman filter on matrix Lie groups 矩阵李群上的变式无标记卡尔曼滤波器

IF 4.8 2区计算机科学

Automatica Pub Date : 2024-11-26 DOI: 10.1016/j.automatica.2024.111995

Tianzhi Li, Jinzhi Wang

{"title":"Variational unscented Kalman filter on matrix Lie groups","authors":"Tianzhi Li, Jinzhi Wang","doi":"10.1016/j.automatica.2024.111995","DOIUrl":"10.1016/j.automatica.2024.111995","url":null,"abstract":"<div><div>In this paper, several estimation algorithms called the variational unscented Kalman filters (UKF-Vs) are proposed for matrix Lie groups. The proposed filters are inspired by the unscented Kalman filter in Euclidean space and they exhibit advantages over conventional methods, as the prediction step and the measurement update step are established on the Lie algebra and its dual space, which therefore avoids direct operations on highly nonlinear Lie group configuration spaces. Correspondingly, the proposed UKF-Vs exhibit significant improvements in terms of the estimation error and mean square error. This also makes it possible to construct a computationally efficient geometric integrator for the filtering dynamics. The obtained formulation is independent of the nonlinear Lie group state-space, and it sheds light on fully predicting and updating on the Lie algebra and its dual which are endowed with vector space structures. In particular, these formulations can avoid singularities or the well-known gimbal lock in the attitude estimation problem. Furthermore, the stochastic stability of the proposed filters is studied. The performances of the proposed filters are demonstrated for the satellite attitude estimation problem, which is an important benchmark from a control perspective. Numerical results show that the proposed UKF-Vs keep less computational complexity and perform significantly high accuracy compared with two unscented Kalman filters on Lie groups.</div></div>","PeriodicalId":55413,"journal":{"name":"Automatica","volume":"172 ","pages":"Article 111995"},"PeriodicalIF":4.8,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142719595","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

Multidimensional opinion dynamics with heterogeneous bounded confidences and random interactions 具有异质有界保密性和随机交互作用的多维舆论动态

IF 4.8 2区计算机科学

Automatica Pub Date : 2024-11-26 DOI: 10.1016/j.automatica.2024.112002

Jiangjiang Cheng , Ge Chen , Wenjun Mei , Francesco Bullo

引用次数: 0

Distributed adaptive leaderless output consensus of uncertain nonlinear multi-agent systems with heterogenous system orders 具有异源系统阶次的不确定非线性多代理系统的分布式自适应无领导输出共识

IF 4.8 2区计算机科学

Automatica Pub Date : 2024-11-26 DOI: 10.1016/j.automatica.2024.111975

Jiang Long , Wei Wang , Changyun Wen , Jiangshuai Huang , Yangming Guo

引用次数: 0

A joint diagnoser approach for diagnosability of discrete event systems under attack 受攻击离散事件系统可诊断性的联合诊断方法

IF 4.8 2区计算机科学

Automatica Pub Date : 2024-11-26 DOI: 10.1016/j.automatica.2024.112004

Tenglong Kang , Carla Seatzu , Zhiwu Li , Alessandro Giua

{"title":"A joint diagnoser approach for diagnosability of discrete event systems under attack","authors":"Tenglong Kang , Carla Seatzu , Zhiwu Li , Alessandro Giua","doi":"10.1016/j.automatica.2024.112004","DOIUrl":"10.1016/j.automatica.2024.112004","url":null,"abstract":"<div><div>This paper investigates the problem of diagnosing the occurrence of a fault event in a discrete event system (DES) subject to malicious attacks. We consider a DES monitored by an operator through the perceived sensor observations. It is assumed that an attacker can tamper with the sensor observations, and the system operator is not aware of the attacker’s presence at the beginning. We propose a stealthy joint diagnoser (SJD) that (i) describes all possible stealthy attacks (i.e., undiscovered by the operator) in a given attack scenario; (ii) records the joint diagnosis state, i.e., the diagnosis state of the attacker consistent with the original observation and the diagnosis state of the operator consistent with the corrupted observation. The SJD is used for diagnosability verification under attack. From the attacker’s point of view, we present two levels of stealthy attackers: one only temporarily degrades the diagnosis state of the operator, and the other permanently causes damage to the diagnosis state of the operator, thereby resulting in a violation of diagnosability. Finally, necessary and sufficient conditions for the existence of the two levels of attackers are presented.</div></div>","PeriodicalId":55413,"journal":{"name":"Automatica","volume":"172 ","pages":"Article 112004"},"PeriodicalIF":4.8,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142719601","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

Resilient stepped transmission and control for nonlinear systems against DoS attacks 针对 DoS 攻击的非线性系统弹性阶跃传输和控制

IF 4.8 2区计算机科学

Automatica Pub Date : 2024-11-26 DOI: 10.1016/j.automatica.2024.111990

Yiwen Chen , Guoguang Wen , Ahmed Rahmani , Zhaoxia Peng , Jun Jiang , Tingwen Huang

引用次数: 0