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Optimal preview control of probabilistic Boolean networks 概率布尔网络的最优预览控制
IF 3.7 2区 计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-11-12 DOI: 10.1016/j.nahs.2025.101659
Linye Wu , Qiyao Wang , Jitao Sun
This paper explores optimal preview control for probabilistic Boolean networks (PBNs). Over the past decade, scholars have introduced PBNs as a pioneering mathematical framework. A significant challenge involves deriving optimal strategies for PBNs to prevent unfavorable states. Our proposed methodology integrates the strengths of the semi-tensor product (STP, i.e., Cheng product) of matrices and the Exclusive-Or operator. This integration results in an extended system capable of guiding PBNs with minimal cost. Furthermore, the configurability of the cost function allows for the inclusion of various control inputs and state variables. Discrete-time Markov decision processes (DTMDPs) are employed to determine the most suitable control policies. Finally, a numerical example is presented to validate the effectiveness of the proposed preview control protocol for PBNs.
本文研究了概率布尔网络(PBNs)的最优预览控制。在过去的十年中,学者们将pbn作为一个开创性的数学框架引入。一个重要的挑战是为pbn提供防止不利状态的最佳策略。我们提出的方法整合了矩阵的半张量积(STP,即Cheng积)和异或算子的优势。这种集成形成了一个能够以最小成本引导pbn的扩展系统。此外,成本函数的可配置性允许包含各种控制输入和状态变量。采用离散马尔可夫决策过程(dtmdp)来确定最合适的控制策略。最后给出了一个数值算例,验证了所提出的pbn预览控制协议的有效性。
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引用次数: 0
An event-triggered robust sampled tracking controller for communication-state-input constrained perturbed unicycle mobile robots 通信状态-输入约束摄动独轮车移动机器人的事件触发鲁棒采样跟踪控制器
IF 3.7 2区 计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-11-07 DOI: 10.1016/j.nahs.2025.101657
Ariana Gutiérrez , Héctor Ríos , Manuel Mera , Denis Efimov , Rosane Ushirobira
This paper presents a robust sampled controller design for trajectory tracking in unicycle mobile robots subject to state, input, and communication constraints, as well as external disturbances such as wheel slipping. The proposed approach integrates two control strategies: an aperiodic control law based on an event-triggered mechanism and a periodic control law using a constant sampled state-feedback controller. The event-triggered control employs the attractive ellipsoid method and the barrier Lyapunov function to ensure performance within a defined safe set, where state constraints are preserved, and a switching set determines the active control strategy. The periodic sampled control considers the maximum sampling time required to achieve trajectory tracking while minimizing bandwidth usage. This strategy guarantees input-to-state stability of the tracking error dynamics against multiplicative external disturbances. Additionally, a straightforward method using linear matrix inequalities is provided to compute the controller gains. Experimental results validate the effectiveness of the proposed robust control approach.
本文提出了一种鲁棒采样控制器设计,用于单轮移动机器人在状态、输入和通信约束以及车轮打滑等外部干扰下的轨迹跟踪。该方法集成了两种控制策略:基于事件触发机制的非周期控制律和使用恒定采样状态反馈控制器的周期控制律。事件触发控制采用吸引椭球方法和屏障Lyapunov函数来确保在定义的安全集合内的性能,其中状态约束被保留,并且切换集确定主动控制策略。周期采样控制考虑实现轨迹跟踪所需的最大采样时间,同时最小化带宽使用。该策略保证了跟踪误差动态对倍增性外部干扰的输入到状态稳定性。此外,还提供了一种使用线性矩阵不等式计算控制器增益的简单方法。实验结果验证了所提鲁棒控制方法的有效性。
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引用次数: 0
Local stability for a class of piecewise affine Filippov systems 一类分段仿射Filippov系统的局部稳定性
IF 3.7 2区 计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-11-06 DOI: 10.1016/j.nahs.2025.101654
Xinyong Wang , Laurentiu Hetel , Ying Tang , Jimmy Lauber
In this paper the local asymptotic stability problem is investigated for a class of piecewise affine (PWA) Filippov systems. We address a particular case of PWA systems with linear switching surfaces crossing at an equilibrium resulting from sliding dynamics (Filippov/pseudo equilibrium). The PWA systems may also present other unstable equilibria. Sufficient Lyapunov-based conditions are given for characterising the local asymptotic stability of the Filippov equilibrium. Methods are proposed to estimate the domain of attraction.
研究了一类分段仿射菲利波夫系统的局部渐近稳定性问题。我们解决了PWA系统的一个特殊情况,线性开关表面在滑动动力学(Filippov/伪平衡)的平衡下交叉。PWA系统也可能出现其他不稳定平衡。给出了表征Filippov平衡点局部渐近稳定性的充分的lyapunov基条件。提出了估计引力域的方法。
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引用次数: 0
Explicit criteria for recurrence of Markovian regime-switching diffusion processes under arbitrary switching rates 任意切换速率下马尔可夫状态切换扩散过程递归的显式判据
IF 3.7 2区 计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-10-24 DOI: 10.1016/j.nahs.2025.101655
Jianrui Li, Jinghai Shao
The recurrent property of diffusion processes with regime-switching is quite complicated, which could be transient even when it is recurrent at every fixed environment. This work provides explicit criteria in terms of the coefficients of diffusion processes such that the studied processes are recurrent or transient under arbitrary switching rates. The obtained criteria are in the integral form, which are particularly effective for the regime-switching processes with coefficients vibrating periodically. Examples are constructed to illustrate the applications of these criteria.
具有状态切换的扩散过程的循环特性非常复杂,即使在每个固定环境下都是循环的,也可能是暂态的。这项工作为扩散过程的系数提供了明确的标准,使得所研究的过程在任意开关速率下是循环的或瞬态的。所得到的判据是积分形式的,对系数周期性振动的状态切换过程特别有效。本文构造了一些例子来说明这些标准的应用。
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引用次数: 0
Optimal output regulation of Boolean control networks 布尔控制网络的最优输出调节
IF 3.7 2区 计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-10-17 DOI: 10.1016/j.nahs.2025.101653
Yanan Pan , Shihua Fu , Jianjun Wang , Weihai Zhang
This paper studies the optimal output regulation of Boolean control networks (BCNs), the main objective of which is to design a state feedback control such that the tracking error of each state trajectory in the system is minimized. Firstly, the definition of the solvability for the output regulation within admissible tracking error is given, and some necessary and sufficient conditions to determine the solvability of the output regulation problem within admissible tracking error are obtained. Secondly, the optimal trajectory of each state is provided when the outputs of the BCN cannot completely track the time-varying reference signals, and a control design algorithm that minimizes the tracking error of the system is introduced. Finally, two examples are given to verify the validity of our new findings.
本文研究了布尔控制网络的最优输出调节,其主要目标是设计一种状态反馈控制,使系统中每个状态轨迹的跟踪误差最小。首先,给出了在允许跟踪误差范围内输出调节问题可解性的定义,得到了确定在允许跟踪误差范围内输出调节问题可解性的充分必要条件;其次,给出了BCN输出不能完全跟踪时变参考信号时各状态的最优轨迹,并引入了一种使系统跟踪误差最小化的控制设计算法;最后,给出了两个例子来验证我们新发现的有效性。
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引用次数: 0
Recurrence of nonlinear control systems: Entropy, bit rates, and finite alphabet controllers 非线性控制系统的递归:熵、比特率和有限字母控制器
IF 3.7 2区 计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-10-16 DOI: 10.1016/j.nahs.2025.101649
Hussein Sibai , Enrique Mallada
In this paper, we introduce the notion of recurrence entropy in the context of nonlinear control systems. A set is said to be (τ-)recurrent if every trajectory that starts in the set returns to it (within at most τ units of time). The recurrence entropy of a control system quantifies the complexity of making a set τ-recurrent measured by the average rate of growth, as time increases, of the number of control signals required to achieve this goal. Our analysis reveals that, compared to invariance, recurrence is quantitatively less complex, meaning that the recurrence entropy of a set is no larger than, and often strictly smaller than, the invariance entropy. We provide upper and lower bounds on recurrence entropy and show that they converge to the bounds on invariance entropy as τ decreases to zero. Further, our results show that recurrence entropy lower bounds the minimum data rate between the sensor and controller required for achieving recurrence. We present an algorithm according to which the sensor can send state estimates to the controller over a limited-bandwidth channel to achieve recurrence asymptotically at an exponential rate. Finally, we show that, under mild stricter conditions on the set and dynamics, the control signals that enforce the τ-recurrence of a set can be generated by a finite alphabet of control signals of durations of at most τ units of time, which allows us to store them for quick online execution.
本文在非线性控制系统中引入了递归熵的概念。如果在集合中开始的每个轨迹都返回到它(最多在τ单位时间内),则称一个集合是(τ-)循环的。控制系统的递归熵量化了使一组τ-递归的复杂性,该复杂度由达到该目标所需的控制信号数量随时间增加的平均增长率来衡量。我们的分析表明,与不变性相比,递归在数量上不那么复杂,这意味着一个集合的递归熵不大于,而且通常严格小于不变性熵。我们提供了递归熵的上界和下界,并表明当τ减小到零时,它们收敛于不变性熵的上界和下界。此外,我们的结果表明,递归熵的下限是实现递归所需的传感器和控制器之间的最小数据速率。我们提出了一种算法,根据该算法,传感器可以在有限带宽信道上向控制器发送状态估计,以指数速率渐近地实现递归。最后,我们证明,在较严格的集合和动力学条件下,强制集合τ-递推的控制信号可以由持续时间最多为τ单位时间的有限控制信号字母表生成,这使我们能够将它们存储起来以便快速在线执行。
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引用次数: 0
On L1 and time-optimal state transitions in piecewise linear models of gene-regulatory networks 基因调控网络分段线性模型中的L1和时间最优状态转移
IF 3.7 2区 计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-10-16 DOI: 10.1016/j.nahs.2025.101650
Agustín G. Yabo , Nicolas Augier
In this paper, we investigate optimal state transfers for a generic class of piecewise-linear models widely used to qualitatively describe gene-regulatory networks. Motivated by the main practical drawbacks of artificially regulating gene expression through chemical inducers, the optimality of the transitions is defined as the convex combination of the total time and the L1 cost of the control. Solutions are studied through a Hybrid Pontryagin’s Maximum Principle approach, which allows to characterize the optimal trajectories and control for the general formulation of the problem. Then, we focus on two practical examples of two-dimensional regulatory networks: the bistable switch, for which the objective is to induce optimal transitions between its two stable steady states, and the damped genetic oscillator, where the goal is to induce sustained oscillatory behaviors. The resulting optimal control strategies can be expressed in state feedback form, involving both bang arcs and inactive control periods, and are shown to slide over certain separatrices of the uncontrolled system that characterize the boundaries of the admissibility set.
在本文中,我们研究了一类广泛用于定性描述基因调控网络的分段线性模型的最优状态转移。由于通过化学诱导剂人工调节基因表达的主要实际缺陷,过渡的最优性被定义为总时间和控制的L1成本的凸组合。通过混合庞特里亚金最大原理方法研究了解决方案,该方法允许表征问题的一般公式的最优轨迹和控制。然后,我们重点讨论了二维调节网络的两个实际例子:双稳态开关,其目标是诱导其两个稳定稳态之间的最佳转换,以及阻尼遗传振荡器,其目标是诱导持续振荡行为。所得到的最优控制策略可以以状态反馈形式表示,包括爆炸弧和非活动控制周期,并显示出在表征可容许集边界的非受控系统的某些分离上滑动。
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引用次数: 0
Stochastic critical-packet-based attack on remote state estimation: From attackers’ perspective 基于随机临界包的远程状态估计攻击:来自攻击者的视角
IF 3.7 2区 计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-10-16 DOI: 10.1016/j.nahs.2025.101652
Yifu Feng , Zonghai Hu , Jiancun Wu , Engang Tian
Remote state estimation systems are vulnerable to malicious attacks, particularly when operating over unreliable communication networks with nonlinear dynamics. This paper proposes a stochastic critical-packet-based (SCPB) attack strategy that selectively targets packets according to their impact on the estimation process. A criticality indicator is defined as the difference between prior and posterior local estimates. Based on this indicator, a probabilistic attack mechanism is designed in which the attack success probability (ASP) increases with both packet importance and the assigned attack strength. To enhance the effectiveness of the attack, an adaptive energy adjustment scheme is introduced, assigning higher attack intensity to more critical packets. Theoretical analysis establishes explicit relationships among packet criticality, attack strength, ASP, and estimation performance degradation. Simulation results demonstrate that the proposed strategy induces significantly larger estimation errors than baseline attacks under the same average attack probability.
远程状态估计系统容易受到恶意攻击,特别是在非线性动态的不可靠通信网络上运行时。本文提出了一种基于随机关键数据包的攻击策略,该策略根据数据包对估计过程的影响选择性地攻击数据包。临界指标被定义为先验和后验局部估计之间的差异。在此基础上,设计了一种概率攻击机制,攻击成功概率ASP随数据包重要性和分配的攻击强度的增加而增加。为了提高攻击的有效性,引入了一种自适应能量调整方案,将更高的攻击强度分配给更关键的数据包。理论分析建立了数据包临界性、攻击强度、ASP和估计性能退化之间的明确关系。仿真结果表明,在相同的平均攻击概率下,该策略的估计误差明显大于基线攻击。
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引用次数: 0
Constant reference tracking control for uncertain linear sampled-data systems 不确定线性采样数据系统的常参考跟踪控制
IF 3.7 2区 计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-10-11 DOI: 10.1016/j.nahs.2025.101651
Roberto M. Fuentes , Gabriela W. Gabriel , André M. de Oliveira , Jonathan M. Palma
This paper studies the reference-tracking control problem for uncertain sampled-data systems with partial observation of the states. We show that, by robustly stabilizing the closed-loop system, the proposed digital controller ensures that the controlled output tracks constant set points. Moreover, new design conditions given in terms of Differential Linear Matrix Inequalities are presented for obtaining controllers with partial and complete measurements of the states. The design conditions are illustrated by numerical examples.
研究具有部分状态观测的不确定采样数据系统的参考跟踪控制问题。结果表明,通过鲁棒稳定闭环系统,所提出的数字控制器确保被控输出跟踪恒定设定点。此外,给出了用微分线性矩阵不等式给出的新的设计条件,用于获得具有部分和完全状态测量的控制器。通过数值算例说明了设计条件。
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引用次数: 0
Distributed event-triggered observer design for networked multi-agent systems 面向网络多智能体系统的分布式事件触发观测器设计
IF 3.7 2区 计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-10-11 DOI: 10.1016/j.nahs.2025.101648
Wei Ren
This paper addresses the state estimation problem of multi-agent systems under multiple networks and event-triggered mechanisms. Multiple networks are to accommodate physical separation of different agents, while event-triggered mechanisms are to address the resource constraints of networks. This setting results in the distributed structure and even the simultaneous design of distributed observers and event-triggered mechanisms. We follow the emulation-based approach to propose a novel hybrid model for the state estimation of multi-agent systems. Both Lyapunov-based conditions and distributed event-triggered mechanisms are established such that the estimation errors are convergent asymptotically. The proposed approach is further implemented to deal with the distributed observer-based controller design problem of multi-agent systems. Both the general framework is established and the conditions in the form of linear matrix inequalities are derived. Finally, the derived results are illustrated via two numerical examples from inverted pendulum robots and power systems.
研究了多智能体系统在多网络和事件触发机制下的状态估计问题。多网络是为了适应不同代理的物理分离,而事件触发机制是为了解决网络的资源约束。这种设置导致分布式结构,甚至同时设计分布式观察器和事件触发机制。我们遵循基于仿真的方法,提出了一种用于多智能体系统状态估计的新型混合模型。建立了基于lyapunov的条件和分布式事件触发机制,使得估计误差渐近收敛。将该方法进一步应用于多智能体系统中基于分布式观测器的控制器设计问题。建立了一般框架,并导出了线性矩阵不等式形式的条件。最后,通过倒立摆机器人和动力系统的两个数值算例对所得结果进行了说明。
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引用次数: 0
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Nonlinear Analysis-Hybrid Systems
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