首页 > 最新文献

Systems & Control Letters最新文献

英文 中文
Noncollocated adaptive output regulation of a Schrödinger equation with unknown exosystem 未知外系Schrödinger方程的非配位自适应输出调节
IF 2.5 3区 计算机科学 Q3 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-10-14 DOI: 10.1016/j.sysconle.2025.106265
Xiu-Fang Yu , Jun-Min Wang , Jun-Jun Liu
In this paper, we consider the output regulation problem of a 1-d Schrödinger equation, where the output and control input are located at opposite boundaries and the disturbances are generated from an unknown finite-dimensional exosystem. We apply an adaptive observer to estimate all possible unknown frequencies of the exosystem. The following work is aiming at designing an error feedback control to achieve the output regulation and disturbances rejection based on the adaptive internal model. The closed-loop system is proved to be well-posed and bounded. The numerical simulations are carried out to demonstrate that the proposed controller is effective and the tracking error converges to zero.
本文考虑一维Schrödinger方程的输出调节问题,该方程的输出和控制输入位于相反的边界,干扰来自未知的有限维系外系统。我们应用自适应观测器来估计系外系统所有可能的未知频率。下面的工作旨在设计一个误差反馈控制,以实现输出调节和干扰抑制基于自适应内模型。证明了闭环系统是适定的和有界的。仿真结果表明,所提出的控制器是有效的,跟踪误差收敛到零。
{"title":"Noncollocated adaptive output regulation of a Schrödinger equation with unknown exosystem","authors":"Xiu-Fang Yu ,&nbsp;Jun-Min Wang ,&nbsp;Jun-Jun Liu","doi":"10.1016/j.sysconle.2025.106265","DOIUrl":"10.1016/j.sysconle.2025.106265","url":null,"abstract":"<div><div>In this paper, we consider the output regulation problem of a 1-d Schrödinger equation, where the output and control input are located at opposite boundaries and the disturbances are generated from an unknown finite-dimensional exosystem. We apply an adaptive observer to estimate all possible unknown frequencies of the exosystem. The following work is aiming at designing an error feedback control to achieve the output regulation and disturbances rejection based on the adaptive internal model. The closed-loop system is proved to be well-posed and bounded. The numerical simulations are carried out to demonstrate that the proposed controller is effective and the tracking error converges to zero.</div></div>","PeriodicalId":49450,"journal":{"name":"Systems & Control Letters","volume":"205 ","pages":"Article 106265"},"PeriodicalIF":2.5,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145320803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Quasi-synchronization of heterogeneous networks with Lévy noise and semi-Markov jump via intermittent delay sampled-data control 基于间歇延迟采样数据控制的lsamvy噪声和半马尔可夫跳变异构网络的准同步
IF 2.5 3区 计算机科学 Q3 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-10-13 DOI: 10.1016/j.sysconle.2025.106252
Mengdie Xiao , Xiaofeng Xu , Ming Liu
We mainly study the quasi-synchronization problem of heterogeneous networks in the presence of Lévy noise and semi-Markov jumps. In terms of controller design, we propose two schemes: one is intermittent delay sampled-data control, and the other is time-varying intermittent delay sampled-data control. Both schemes are based on intermittent delay control and integrate the characteristics of time-varying gain and state sampling. Different from the previous continuous and uninterrupted sampling control, their significant advantage lies in the adoption of discrete data sampling, which improves efficiency and saves costs to a certain extent. Among them, the time-varying intermittent delay sampled-data control further enhances the adaptability to complex dynamic environments by dynamically adjusting the control gain. In addition, by combining the auxiliary timer with the Lyapunov method, we obtain the inequality criteria required to achieve quasi-synchronization and derive two different sampling error estimates. Finally, we carefully select Chua’s circuit for relevant numerical simulations to verify the effectiveness of these theoretical results.
主要研究存在lsamvy噪声和半马尔可夫跳变的异构网络的准同步问题。在控制器设计方面,我们提出了两种方案:一种是间歇延迟采样数据控制方案,另一种是时变间歇延迟采样数据控制方案。这两种方案都是基于间歇延迟控制,并结合时变增益和状态采样的特点。与以往的连续、不间断采样控制不同,其显著优势在于采用离散数据采样,在一定程度上提高了效率,节约了成本。其中,时变间歇延迟采样数据控制通过动态调节控制增益,进一步增强了对复杂动态环境的适应性。此外,通过将辅助定时器与Lyapunov方法相结合,我们得到了实现准同步所需的不等式准则,并推导了两种不同的采样误差估计。最后,我们仔细选择蔡氏电路进行相关的数值模拟,以验证这些理论结果的有效性。
{"title":"Quasi-synchronization of heterogeneous networks with Lévy noise and semi-Markov jump via intermittent delay sampled-data control","authors":"Mengdie Xiao ,&nbsp;Xiaofeng Xu ,&nbsp;Ming Liu","doi":"10.1016/j.sysconle.2025.106252","DOIUrl":"10.1016/j.sysconle.2025.106252","url":null,"abstract":"<div><div>We mainly study the quasi-synchronization problem of heterogeneous networks in the presence of Lévy noise and semi-Markov jumps. In terms of controller design, we propose two schemes: one is intermittent delay sampled-data control, and the other is time-varying intermittent delay sampled-data control. Both schemes are based on intermittent delay control and integrate the characteristics of time-varying gain and state sampling. Different from the previous continuous and uninterrupted sampling control, their significant advantage lies in the adoption of discrete data sampling, which improves efficiency and saves costs to a certain extent. Among them, the time-varying intermittent delay sampled-data control further enhances the adaptability to complex dynamic environments by dynamically adjusting the control gain. In addition, by combining the auxiliary timer with the Lyapunov method, we obtain the inequality criteria required to achieve quasi-synchronization and derive two different sampling error estimates. Finally, we carefully select Chua’s circuit for relevant numerical simulations to verify the effectiveness of these theoretical results.</div></div>","PeriodicalId":49450,"journal":{"name":"Systems & Control Letters","volume":"205 ","pages":"Article 106252"},"PeriodicalIF":2.5,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145320802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Abstraction-based optimal controller synthesis using dynamic quantization and RRT* 基于抽象的动态量化和RRT*的最优控制器综合
IF 2.5 3区 计算机科学 Q3 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-10-11 DOI: 10.1016/j.sysconle.2025.106259
Chao-Qun Jin, Wei Ren
This paper addresses the abstraction-based optimal control problems of nonlinear control systems under linear temporal logic (LTL) tasks, and proposes a novel local-to-global controller synthesis approach. First, dynamic quantization techniques and the Rapidly-exploring Random Trees Star (RRT*) algorithm are combined together to generate an optimal sequence of quantization regions, which are further applied to verify the realization of the LTL task and are involved in the optimal control design. Second, with the optimal sequence of quantization regions, the LTL task is decomposed into finite local ones, which are embedded into finite local optimization problems. Third, in order to deal with these local optimization problems, the abstraction-based optimal control approach is developed such that a novel hybrid sub-optimal controller is established to achieve the LTL task. Finally, a numerical example is presented to illustrate the proposed approach.
研究了线性时间逻辑(LTL)任务下非线性控制系统基于抽象的最优控制问题,提出了一种新的局部到全局控制器综合方法。首先,将动态量化技术与快速探索随机树星(RRT*)算法相结合,生成最优量化区域序列,并将其应用于LTL任务的实现验证,并参与最优控制设计。其次,利用量化区域的最优序列,将LTL任务分解为有限局部任务,嵌入到有限局部优化问题中;第三,针对这些局部优化问题,提出了基于抽象的最优控制方法,建立了一种新的混合次最优控制器来实现LTL任务。最后,给出了一个数值算例来说明所提出的方法。
{"title":"Abstraction-based optimal controller synthesis using dynamic quantization and RRT*","authors":"Chao-Qun Jin,&nbsp;Wei Ren","doi":"10.1016/j.sysconle.2025.106259","DOIUrl":"10.1016/j.sysconle.2025.106259","url":null,"abstract":"<div><div>This paper addresses the abstraction-based optimal control problems of nonlinear control systems under linear temporal logic (LTL) tasks, and proposes a novel local-to-global controller synthesis approach. First, dynamic quantization techniques and the Rapidly-exploring Random Trees Star (RRT*) algorithm are combined together to generate an optimal sequence of quantization regions, which are further applied to verify the realization of the LTL task and are involved in the optimal control design. Second, with the optimal sequence of quantization regions, the LTL task is decomposed into finite local ones, which are embedded into finite local optimization problems. Third, in order to deal with these local optimization problems, the abstraction-based optimal control approach is developed such that a novel hybrid sub-optimal controller is established to achieve the LTL task. Finally, a numerical example is presented to illustrate the proposed approach.</div></div>","PeriodicalId":49450,"journal":{"name":"Systems & Control Letters","volume":"205 ","pages":"Article 106259"},"PeriodicalIF":2.5,"publicationDate":"2025-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145320801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Observations on robust diffusive stability and common Lyapunov functions 鲁棒扩散稳定性和常见Lyapunov函数的观察
IF 2.5 3区 计算机科学 Q3 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-10-10 DOI: 10.1016/j.sysconle.2025.106263
Blake McGrane-Corrigan , Rafael de Andrade Moral , Oliver Mason
We consider the problem of robust diffusive stability for a pair of coupled stable discrete-time positive linear-time invariant (LTI) systems. We first show that the existence of a common diagonal Lyapunov function is sufficient for robust diffusive stability, and highlight how this condition differs from recent results using linear copositive Lyapunov functions. We also present an extension of these results, showing that the weaker condition of joint linear copositive function existence is also sufficient for robust diffusive stability. Finally, we present two related results for extended Leslie matrices arising in population dynamics.
研究了一类耦合稳定离散正线性时不变系统的鲁棒扩散稳定性问题。我们首先证明了公共对角Lyapunov函数的存在足以满足鲁棒扩散稳定性,并强调了该条件与最近使用线性合成Lyapunov函数的结果的不同之处。我们也给出了这些结果的推广,表明联合线性共函数存在的较弱条件也是鲁棒扩散稳定的充分条件。最后,我们给出了种群动力学中出现的扩展Leslie矩阵的两个相关结果。
{"title":"Observations on robust diffusive stability and common Lyapunov functions","authors":"Blake McGrane-Corrigan ,&nbsp;Rafael de Andrade Moral ,&nbsp;Oliver Mason","doi":"10.1016/j.sysconle.2025.106263","DOIUrl":"10.1016/j.sysconle.2025.106263","url":null,"abstract":"<div><div>We consider the problem of robust diffusive stability for a pair of coupled stable discrete-time positive linear-time invariant (LTI) systems. We first show that the existence of a common diagonal Lyapunov function is sufficient for robust diffusive stability, and highlight how this condition differs from recent results using linear copositive Lyapunov functions. We also present an extension of these results, showing that the weaker condition of <em>joint</em> linear copositive function existence is also sufficient for robust diffusive stability. Finally, we present two related results for extended Leslie matrices arising in population dynamics.</div></div>","PeriodicalId":49450,"journal":{"name":"Systems & Control Letters","volume":"205 ","pages":"Article 106263"},"PeriodicalIF":2.5,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145267876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Prescribed-time stabilization of p-normal nonlinear systems by periodic delayed feedback p-正规非线性系统的周期延迟反馈定时镇定
IF 2.5 3区 计算机科学 Q3 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-10-10 DOI: 10.1016/j.sysconle.2025.106261
Yi Ding , Bin Zhou , Wim Michiels
In this paper, the problem of prescribed-time stabilization of p-normal nonlinear systems is investigated. A novel periodic delayed feedback control law, parameterized directly by the prescribed time, is designed for a class of uncertain p-normal nonlinear systems. With the artificial inclusion of a time delay term in the controller, the proposed control law effectively addresses the considered problem using a uniformly bounded control gain. Notably, the proposed control law has a clear definition at any given time, thus circumventing the inherent singularity associated with time-varying high-gain feedback. Moreover, two numerical examples are provided to demonstrate the effectiveness of the proposed approach.
研究了p-正规非线性系统的定时镇定问题。针对一类不确定p-正态非线性系统,设计了一种由时间直接参数化的周期延迟反馈控制律。通过在控制器中人为地加入时滞项,所提出的控制律使用一致有界的控制增益有效地解决了所考虑的问题。值得注意的是,所提出的控制律在任何给定时间都有明确的定义,从而规避了时变高增益反馈的固有奇异性。最后,给出了两个数值算例,验证了该方法的有效性。
{"title":"Prescribed-time stabilization of p-normal nonlinear systems by periodic delayed feedback","authors":"Yi Ding ,&nbsp;Bin Zhou ,&nbsp;Wim Michiels","doi":"10.1016/j.sysconle.2025.106261","DOIUrl":"10.1016/j.sysconle.2025.106261","url":null,"abstract":"<div><div>In this paper, the problem of prescribed-time stabilization of <span><math><mi>p</mi></math></span>-normal nonlinear systems is investigated. A novel periodic delayed feedback control law, parameterized directly by the prescribed time, is designed for a class of uncertain <span><math><mi>p</mi></math></span>-normal nonlinear systems. With the artificial inclusion of a time delay term in the controller, the proposed control law effectively addresses the considered problem using a uniformly bounded control gain. Notably, the proposed control law has a clear definition at any given time, thus circumventing the inherent singularity associated with time-varying high-gain feedback. Moreover, two numerical examples are provided to demonstrate the effectiveness of the proposed approach.</div></div>","PeriodicalId":49450,"journal":{"name":"Systems & Control Letters","volume":"205 ","pages":"Article 106261"},"PeriodicalIF":2.5,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145267879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Stochastic approximation in non-Markovian environments 非马尔可夫环境下的随机逼近
IF 2.5 3区 计算机科学 Q3 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-10-10 DOI: 10.1016/j.sysconle.2025.106250
Vivek S. Borkar
We analyze a stochastic approximation scheme driven by non-Markovian noise in addition to the standard martingale difference noise. Our main result is that it behaves like a stochastic approximation driven by an ‘equivalent’ Markov noise, i.e., has the same convergence properties, although the convergence rate may degrade. Some implications to reinforcement learning algorithms are discussed.
我们分析了一种由非马尔可夫噪声和标准鞅差分噪声驱动的随机逼近方案。我们的主要结果是,它的行为就像一个由“等效”马尔可夫噪声驱动的随机近似,即具有相同的收敛特性,尽管收敛速度可能会降低。讨论了强化学习算法的一些含义。
{"title":"Stochastic approximation in non-Markovian environments","authors":"Vivek S. Borkar","doi":"10.1016/j.sysconle.2025.106250","DOIUrl":"10.1016/j.sysconle.2025.106250","url":null,"abstract":"<div><div>We analyze a stochastic approximation scheme driven by non-Markovian noise in addition to the standard martingale difference noise. Our main result is that it behaves like a stochastic approximation driven by an ‘equivalent’ Markov noise, i.e., has the same convergence properties, although the convergence rate may degrade. Some implications to reinforcement learning algorithms are discussed.</div></div>","PeriodicalId":49450,"journal":{"name":"Systems & Control Letters","volume":"205 ","pages":"Article 106250"},"PeriodicalIF":2.5,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145267875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Decentralized leader-following formation control of nonholonomic mobile robots by local measurement: A small-gain approach 基于局部测量的非完整移动机器人分散leader-follow群体控制:一种小增益方法
IF 2.5 3区 计算机科学 Q3 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-10-09 DOI: 10.1016/j.sysconle.2025.106253
Mingyu Chen , Weiyao Lan , Andrea Cristofaro , Xiao Yu
This paper considers the leader-following formation control problem of multiple nonholonomic mobile robots by local measurement. The sensor network among the multi-robot system is described by a general directed graph, which contains a directed spanning tree with the root node denoting the leader. A dynamic control law consisting of an observer and a velocity controller, is designed based on the feedback of measurements on the relative positions and orientations. Particularly, the proposed control law can be implemented without using any communication provided that the reference velocities are prior set, which makes it feasible in a decentralized manner. The small-gain theorem is employed to deal with stability analysis on the augmented closed-loop system. A low-gain parameter in the observer ensures that the small-gain condition can be satisfied. The global asymptotic stability of the augmented multi-robot closed-loop system is guaranteed by the proposed small-gain approach. More interestingly, the proposed dynamic control law is robust to measurement errors in relative positions and orientations. Finally, the effectiveness is illustrated by the simulation results of examples.
利用局部测量方法研究了多个非完整移动机器人的leader-follow群体控制问题。多机器人系统中的传感器网络用一般有向图来描述,该有向图包含一棵有向生成树,根节点表示领导者。基于相对位置和方向的测量反馈,设计了由观测器和速度控制器组成的动态控制律。特别地,所提出的控制律可以在不使用任何通信的情况下实现,前提是参考速度是预先设定的,这使得它在分散的方式下是可行的。利用小增益定理处理增广闭环系统的稳定性分析。观测器中的低增益参数保证了小增益条件的满足。提出的小增益方法保证了增广多机器人闭环系统的全局渐近稳定性。更有趣的是,所提出的动态控制律对相对位置和方向的测量误差具有鲁棒性。最后,通过算例仿真验证了该方法的有效性。
{"title":"Decentralized leader-following formation control of nonholonomic mobile robots by local measurement: A small-gain approach","authors":"Mingyu Chen ,&nbsp;Weiyao Lan ,&nbsp;Andrea Cristofaro ,&nbsp;Xiao Yu","doi":"10.1016/j.sysconle.2025.106253","DOIUrl":"10.1016/j.sysconle.2025.106253","url":null,"abstract":"<div><div>This paper considers the leader-following formation control problem of multiple nonholonomic mobile robots by local measurement. The sensor network among the multi-robot system is described by a general directed graph, which contains a directed spanning tree with the root node denoting the leader. A dynamic control law consisting of an observer and a velocity controller, is designed based on the feedback of measurements on the relative positions and orientations. Particularly, the proposed control law can be implemented without using any communication provided that the reference velocities are prior set, which makes it feasible in a decentralized manner. The small-gain theorem is employed to deal with stability analysis on the augmented closed-loop system. A low-gain parameter in the observer ensures that the small-gain condition can be satisfied. The global asymptotic stability of the augmented multi-robot closed-loop system is guaranteed by the proposed small-gain approach. More interestingly, the proposed dynamic control law is robust to measurement errors in relative positions and orientations. Finally, the effectiveness is illustrated by the simulation results of examples.</div></div>","PeriodicalId":49450,"journal":{"name":"Systems & Control Letters","volume":"205 ","pages":"Article 106253"},"PeriodicalIF":2.5,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145267877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Delay-tolerant augmented-consensus-based distributed directed optimization 基于延迟容忍增强共识的分布式定向优化
IF 2.5 3区 计算机科学 Q3 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-10-08 DOI: 10.1016/j.sysconle.2025.106260
Mohammadreza Doostmohammadian , Narahari Kasagatta Ramesh , Alireza Aghasi
Distributed optimization finds applications in large-scale machine learning, data processing and classification over multi-agent networks. In real-world scenarios, the communication network of agents may encounter latency that may affect the convergence of the optimization protocol. This paper addresses the case where the information exchange among the agents (computing nodes) over data-transmission channels (links) might be subject to communication time-delays, which is not well addressed in the existing literature. Our proposed algorithm improves the state-of-the-art by handling heterogeneous and arbitrary but bounded and fixed (time-invariant) delays over general strongly-connected directed networks. Arguments from matrix theory, algebraic graph theory, and augmented consensus formulation are applied to prove the convergence to the optimal value. Simulations are provided to verify the results and compare the performance with some existing delay-free algorithms.
分布式优化在大规模机器学习、数据处理和多智能体网络分类中有广泛的应用。在实际场景中,代理之间的通信网络可能会遇到延迟,从而影响优化协议的收敛性。本文解决了在数据传输通道(链路)上代理(计算节点)之间的信息交换可能受到通信时延影响的情况,这在现有文献中没有得到很好的解决。我们提出的算法通过处理一般强连接有向网络上的异构和任意但有界和固定(时不变)延迟来改进最先进的技术。应用矩阵论、代数图论和增广一致公式的论证证明了该算法收敛于最优值。仿真结果验证了该算法的有效性,并与现有的无延迟算法进行了性能比较。
{"title":"Delay-tolerant augmented-consensus-based distributed directed optimization","authors":"Mohammadreza Doostmohammadian ,&nbsp;Narahari Kasagatta Ramesh ,&nbsp;Alireza Aghasi","doi":"10.1016/j.sysconle.2025.106260","DOIUrl":"10.1016/j.sysconle.2025.106260","url":null,"abstract":"<div><div>Distributed optimization finds applications in large-scale machine learning, data processing and classification over multi-agent networks. In real-world scenarios, the communication network of agents may encounter latency that may affect the convergence of the optimization protocol. This paper addresses the case where the information exchange among the agents (computing nodes) over data-transmission channels (links) might be subject to communication time-delays, which is not well addressed in the existing literature. Our proposed algorithm improves the state-of-the-art by handling heterogeneous and arbitrary but bounded and fixed (time-invariant) delays over general strongly-connected directed networks. Arguments from matrix theory, algebraic graph theory, and augmented consensus formulation are applied to prove the convergence to the optimal value. Simulations are provided to verify the results and compare the performance with some existing delay-free algorithms.</div></div>","PeriodicalId":49450,"journal":{"name":"Systems & Control Letters","volume":"205 ","pages":"Article 106260"},"PeriodicalIF":2.5,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145267881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Reliability-guaranteed static output feedback control for linear systems with stochastic parametric uncertainty 随机参数不确定性线性系统的可靠保证静态输出反馈控制
IF 2.5 3区 计算机科学 Q3 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-10-08 DOI: 10.1016/j.sysconle.2025.106258
Ziqi Yang , Jianchun Zhang
This paper studies the static output feedback control problem for linear systems with stochastic parametric uncertainty. Differing from the existing norm-bounded and polytopic assumptions, the uncertain parameters in the dynamics are described by stochastic distributions and thus a stochastic linear matrix inequality (LMI) for system stability and performance robustness is obtained. Through the limit state function method and matrix inequality lemmas, the stochastic LMI is subtly transformed into a probabilistic LMI with a probabilistic parameter for the static output feedback control. This probabilistic parameter is characterized by the reliability index. At different prescribed reliability indices, the static output feedback controller with different reliability levels can be flexibly designed. The theoretical results are verified by two simulation examples.
研究了具有随机参数不确定性的线性系统的静态输出反馈控制问题。不同于已有的范数有界假设和多面体假设,将动力学中的不确定参数用随机分布来描述,从而得到了系统稳定性和性能鲁棒性的随机线性矩阵不等式(LMI)。通过极限状态函数法和矩阵不等式引理,将随机LMI巧妙地转化为带有概率参数的概率LMI,用于静态输出反馈控制。该概率参数用可靠性指标来表征。在规定的不同可靠度指标下,可以灵活设计不同可靠度水平的静态输出反馈控制器。通过两个仿真算例验证了理论结果。
{"title":"Reliability-guaranteed static output feedback control for linear systems with stochastic parametric uncertainty","authors":"Ziqi Yang ,&nbsp;Jianchun Zhang","doi":"10.1016/j.sysconle.2025.106258","DOIUrl":"10.1016/j.sysconle.2025.106258","url":null,"abstract":"<div><div>This paper studies the static output feedback control problem for linear systems with stochastic parametric uncertainty. Differing from the existing norm-bounded and polytopic assumptions, the uncertain parameters in the dynamics are described by stochastic distributions and thus a stochastic linear matrix inequality (LMI) for system stability and performance robustness is obtained. Through the limit state function method and matrix inequality lemmas, the stochastic LMI is subtly transformed into a probabilistic LMI with a probabilistic parameter for the static output feedback control. This probabilistic parameter is characterized by the reliability index. At different prescribed reliability indices, the static output feedback controller with different reliability levels can be flexibly designed. The theoretical results are verified by two simulation examples.</div></div>","PeriodicalId":49450,"journal":{"name":"Systems & Control Letters","volume":"205 ","pages":"Article 106258"},"PeriodicalIF":2.5,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145267878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Output feedback consensus control of continuous multi agent systems under fading networks and its application in vehicle platooning 衰落网络下连续多智能体系统的输出反馈一致控制及其在车辆队列中的应用
IF 2.5 3区 计算机科学 Q3 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-10-07 DOI: 10.1016/j.sysconle.2025.106257
Jin Zhang , Lifang Liao
This paper focuses on fading communication channels, which describe the phenomenon of communication packet loss. It investigates the impact of fading networks on achieving output feedback consensus in multi-agent systems (MASs). First, for identical fading networks, we establish the mean-square stability (MSS) of a dual result through state transformation and provide conditions for MASs to achieve mean-square consensus in both undirected information flow (UIF) and balanced directed information flow (BDIF) topologies, utilizing the Schur complement lemma and Lyapunov methods. These conditions are closely related to the fading statistics and the information flow topology (IFT). Next, for non-identical fading networks, under state feedback, we employ the edge Laplacian operator and construct agent dynamic models on the edges, providing analytical sufficient conditions for the system’s MSS. These conditions can be numerically verified via linear matrix inequality (LMI) feasibility. Moreover, separate design algorithms for output feedback and state feedback controllers are provided, derived from feasible solutions to modified Riccati inequalities (MRIs). These algorithms can directly utilize IFT and channel fading statistics for parameter calculation, making them easy to implement. Finally, the theory is applied to a real-world vehicle platoon coordinated control problem, and simulation results comparing theoretical and practical models are presented to validate its effectiveness and applicability. Results indicate that even in the presence of fading, the designed control strategies can ensure the vehicle platoon maintains its desired speed and longitudinal spacing.
本文主要研究衰落通信信道,它描述了通信丢包现象。研究了衰落网络对多智能体系统(MASs)输出反馈一致性的影响。首先,我们利用Schur补引理和Lyapunov方法,通过状态变换建立了对偶结果的均方稳定性(MSS),并为质量在无向信息流(UIF)和平衡有向信息流(BDIF)拓扑中实现均方一致性提供了条件。这些条件与衰落统计和信息流拓扑(IFT)密切相关。其次,对于非同构衰落网络,在状态反馈下,采用边缘拉普拉斯算子,在边缘上构造智能体动态模型,为系统的MSS提供了解析性充分条件。这些条件可以通过线性矩阵不等式(LMI)的可行性进行数值验证。此外,根据修正Riccati不等式(mri)的可行解,分别给出了输出反馈和状态反馈控制器的设计算法。这些算法可以直接利用IFT和信道衰落统计进行参数计算,易于实现。最后,将该理论应用于实际的车辆队列协调控制问题,并通过对比理论模型和实际模型的仿真结果,验证了该理论的有效性和适用性。结果表明,即使在存在衰落的情况下,所设计的控制策略也能保证车辆排保持理想的速度和纵向间距。
{"title":"Output feedback consensus control of continuous multi agent systems under fading networks and its application in vehicle platooning","authors":"Jin Zhang ,&nbsp;Lifang Liao","doi":"10.1016/j.sysconle.2025.106257","DOIUrl":"10.1016/j.sysconle.2025.106257","url":null,"abstract":"<div><div>This paper focuses on fading communication channels, which describe the phenomenon of communication packet loss. It investigates the impact of fading networks on achieving output feedback consensus in multi-agent systems (MASs). First, for identical fading networks, we establish the mean-square stability (MSS) of a dual result through state transformation and provide conditions for MASs to achieve mean-square consensus in both undirected information flow (UIF) and balanced directed information flow (BDIF) topologies, utilizing the Schur complement lemma and Lyapunov methods. These conditions are closely related to the fading statistics and the information flow topology (IFT). Next, for non-identical fading networks, under state feedback, we employ the edge Laplacian operator and construct agent dynamic models on the edges, providing analytical sufficient conditions for the system’s MSS. These conditions can be numerically verified via linear matrix inequality (LMI) feasibility. Moreover, separate design algorithms for output feedback and state feedback controllers are provided, derived from feasible solutions to modified Riccati inequalities (MRIs). These algorithms can directly utilize IFT and channel fading statistics for parameter calculation, making them easy to implement. Finally, the theory is applied to a real-world vehicle platoon coordinated control problem, and simulation results comparing theoretical and practical models are presented to validate its effectiveness and applicability. Results indicate that even in the presence of fading, the designed control strategies can ensure the vehicle platoon maintains its desired speed and longitudinal spacing.</div></div>","PeriodicalId":49450,"journal":{"name":"Systems & Control Letters","volume":"205 ","pages":"Article 106257"},"PeriodicalIF":2.5,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145267880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
期刊
Systems & Control Letters
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1