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Continuous trajectory planning for non-convex utility functions using hybrid optimization 基于混合优化的非凸效用函数连续轨迹规划
IF 2.6 3区 计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-12-02 DOI: 10.1016/j.ejcon.2025.101425
He Hao , Daniel Silvestre , Carlos Silvestre
Efficient trajectory generation is essential for applications such as environmental monitoring using autonomous systems, where navigating complex, non-convex environments poses significant challenges. In this paper, we introduce a novel hybrid continuous optimization method that extends gradient techniques to continuous-time frameworks for trajectory planning in non-convex landscapes. The method combines adaptive step-size adjustments with momentum-based gradient techniques, enabling robust navigation through plateau regions and accurate convergence to optimized trajectories. We apply the method to drone trajectory optimization in environments modeled by Gaussian Mixture Models (GMMs), specifically focusing on wildfire monitoring in northern Mexico. The proposed approach generates smooth trajectories and achieves faster convergence when compared to traditional discrete and continuous methods without the hybrid adaptation. Simulation results showcase the method’s potential for broader applications in control systems and other domains requiring optimization in high-dimensional non-convex environments.
高效的轨迹生成对于使用自主系统的环境监测等应用至关重要,在这些应用中,导航复杂的非凸环境构成了重大挑战。在本文中,我们介绍了一种新的混合连续优化方法,将梯度技术扩展到连续时间框架中,用于非凸景观的轨迹规划。该方法将自适应步长调整与基于动量的梯度技术相结合,实现了高原区域的鲁棒导航和优化轨迹的精确收敛。我们将该方法应用于高斯混合模型(GMMs)模拟环境中的无人机轨迹优化,特别关注墨西哥北部的野火监测。与传统的离散和连续方法相比,该方法可以产生平滑的轨迹,并且在没有混合自适应的情况下收敛速度更快。仿真结果表明,该方法在控制系统和其他需要在高维非凸环境中优化的领域具有更广泛的应用潜力。
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引用次数: 0
Approximations of the set of trajectories, attainable sets and integral funnel of the control system with mixed constraints on the control functions 控制函数上有混合约束的控制系统的轨迹集、可达集和积分漏斗的逼近
IF 2.6 3区 计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-12-01 DOI: 10.1016/j.ejcon.2025.101422
Nesir Huseyin , Anar Huseyin , Khalik G. Guseinov , Vladimir N. Ushakov
In this paper, the set of trajectories, attainable sets and integral funnel of a control system described by an ordinary differential equation are studied. The system is nonlinear with respect to the phase state vector and affine with respect to the control vector. It is assumed that the admissible control functions satisfy mixed constraints, including both integral and geometric constraints. Step by step, the set of admissible control functions is replaced by a set consisting of a finite number of piecewise-constant control functions that generate a finite number of trajectories. First, an error evaluation between the set of trajectories and the set consisting of a finite number of trajectories is presented. Then, the trajectories generated by the piecewise-constant control functions are changed with Euler’s broken lines, and an error estimation between the set of trajectories of the system and the set consisting of a finite number of Euler’s broken lines is obtained. Similar estimations for attainable sets of the system are also provided. By applying these results, we derive an approximation with error evaluation for the integral funnel of the system. It is shown that by appropriately defining discretization parameters, the Hausdorff distance between the set of trajectories, the attainable sets, the integral funnel and their approximations can be made sufficiently small. The impact of upper bounds of the geometric and integral constraints on the presented approximations is discussed.
本文研究了用常微分方程描述的控制系统的轨迹集、可得集和积分漏斗。系统相对于相态矢量是非线性的,相对于控制矢量是仿射的。假设允许控制函数满足混合约束,包括积分约束和几何约束。一步一步地,可容许的控制函数集被一个由有限数量的分段常数控制函数组成的集所取代,这些控制函数产生有限数量的轨迹。首先,给出了轨迹集与由有限个轨迹组成的轨迹集之间的误差评估。然后,将分段常数控制函数生成的轨迹用欧拉折线变换,得到了系统轨迹集与有限条欧拉折线集之间的误差估计。对系统的可达到的集合也提供了类似的估计。利用这些结果,我们得到了系统积分漏斗的一个带误差评价的近似。结果表明,通过适当地定义离散化参数,可以使轨迹集、可达集、积分漏斗及其近似之间的豪斯多夫距离足够小。讨论了几何约束和积分约束的上界对所提出的近似的影响。
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引用次数: 0
Asymptotic boundedness and exponential stability of neutral stochastic functional differential equations with unbounded delay 具有无界时滞中立型随机泛函微分方程的渐近有界性和指数稳定性
IF 2.6 3区 计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-12-01 DOI: 10.1016/j.ejcon.2025.101423
Wei Mao , Xiaomu Ling , Jie He , Fuke Wu , Xuerong Mao
This paper is concerned with the asymptotic boundedness and exponential stability of neutral stochastic functional differential equations with unbounded delay. Under the Khasminskii-type condition, we establish the LaSalle theorem for the underlying equations to locate its limit set, and obtain some criteria on the asymptotic boundedness and almost sure stability. By means of the Lyapunov function, some conditions are given for the moment asymptotic boundedness and exponential stability of neutral stochastic functional differential equations with unbounded delay. These conditions also indicate the almost sure exponential stability is robust with respect to stochastic perturbation. Finally, two examples are presented to illustrate our results.
研究了具有无界时滞的中立型随机泛函微分方程的渐近有界性和指数稳定性。在khasminskii型条件下,我们建立了底层方程的LaSalle定理,并得到了其极限集的渐近有界性和几乎确定稳定性的判据。利用Lyapunov函数,给出了具有无界时滞的中立型随机泛函微分方程的矩渐近有界性和指数稳定性的一些条件。这些条件还表明,对于随机扰动,几乎肯定的指数稳定性是鲁棒的。最后,给出了两个例子来说明我们的结果。
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引用次数: 0
DREM-based predefined-time adaptive learning control for nonlinear systems with actuator faults and input delay 具有执行器故障和输入延迟的非线性系统基于drem的预定义时间自适应学习控制
IF 2.6 3区 计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-11-27 DOI: 10.1016/j.ejcon.2025.101426
Mohamed Kharrat
This paper addresses the problem of adaptive tracking control for a class of strict-feedback nonlinear systems subject to actuator faults, input delays, and model uncertainties via parameter identification algorithm. To mitigate the adverse effects of input delay, a Pade approximation combined with an intermediate variable is employed. A parameter estimation method utilizing a three-layer transformation is designed to achieve predefined-time convergence while eliminating the need for persistent excitation. To avoid singularities inherent in traditional control laws, a smooth hyperbolic tangent function is integrated into the design. Furthermore, a composite learning framework is introduced within the adaptive dynamic surface control structure, enabling predefined-time error convergence. Lyapunov-based analysis confirms semi-global uniformly predefined-time boundedness of the closed-loop system. Simulation results validate the effectiveness and robustness of the proposed control strategy.
针对一类存在执行器故障、输入延迟和模型不确定性的严格反馈非线性系统,采用参数辨识算法研究了自适应跟踪控制问题。为了减轻输入延迟的不利影响,采用了结合中间变量的Pade近似。设计了一种利用三层变换的参数估计方法来实现预定义时间收敛,同时消除了对持续激励的需要。为了避免传统控制律固有的奇异性,在设计中引入了光滑双曲正切函数。此外,在自适应动态曲面控制结构中引入了复合学习框架,实现了预定义时间误差收敛。基于lyapunov的分析证实了闭环系统的半全局一致预定义时有界性。仿真结果验证了所提控制策略的有效性和鲁棒性。
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引用次数: 0
Finite-time adaptive tracking control for uncertain nonlinear systems 不确定非线性系统的有限时间自适应跟踪控制
IF 2.6 3区 计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-11-10 DOI: 10.1016/j.ejcon.2025.101410
Guang-Xin Zhong , Li-Yao Wang , Yue Long , Jian Li , Zhen-Xing Zhang , Xiao-Qi Zhao
This article investigates a finite-time adaptive tracking control problem for uncertain nonlinear systems. The uncertainty is modeled as an unknown time-varying parameter, which is further coupled with the function characterizing the system nonlinear behavior. By constructing a novel uncertainty-based operator, a mixed upper/lower bound-dependent stable time interval is estimated. This means that the relationship between system internal uncertainty and finite stable time is established. Next, a command filter is designed, which generates the virtual output to replace the differentiation existing in the process of constructing the virtual input. This removes the much repeated differential operation during adaptive control algorithm design phase and simplifies the corresponding controller structure. Finally, based on a bound-dependent Lagrange operator, a novel finite-time adaptive tracking controller is designed. The controller integrates with a compensation mechanism, which leads to better tracking performance in a finite time. Experimental results with a one-link manipulator with motor dynamics are provided to verify the effectiveness of the proposed scheme.
研究不确定非线性系统的有限时间自适应跟踪控制问题。将不确定性建模为未知时变参数,并与表征系统非线性行为的函数耦合。通过构造一种新的基于不确定性的算子,估计出一个混合上下界相关的稳定时间区间。这意味着建立了系统内部不确定性与有限稳定时间之间的关系。其次,设计命令滤波器,生成虚拟输出,以取代构造虚拟输入过程中存在的微分。这消除了自适应控制算法设计阶段大量重复的微分运算,简化了相应的控制器结构。最后,基于有界相关的拉格朗日算子,设计了一种新的有限时间自适应跟踪控制器。该控制器集成了补偿机制,在有限时间内具有更好的跟踪性能。最后给出了带电机动力学的单连杆机械手的实验结果,验证了所提方案的有效性。
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引用次数: 0
Average-based aperiodic intermittent control for secure synchronization of antagonistic networks 对抗网络安全同步的基于平均的非周期间歇控制
IF 2.6 3区 计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-11-08 DOI: 10.1016/j.ejcon.2025.101411
Lingzhong Zhang , Jianquan Lu , Bowen Li , Jürgen Kurths
This paper studies the bipartite mean-square bounded synchronization of coupled neural networks (NNs) under anti-attack aperiodic intermittent control (AIC). A deception attack model targeting controller–actuator channels in antagonistically coupled NNs is proposed, addressing integrity breaches in communication channels and malicious command injections via intermittent access points. By incorporating averaging into intermittent control, the proposed strategy substantially enhances synchronization robustness of antagonistic networks against deceptive actuators. Through rigorous analysis employing the average AIC interval methodology, some sufficient conditions ensuring bipartite mean-square bounded synchronization for the coupled NNs are established, and the traditional strict upper/lower bounds on AIC width parameters are relaxed. To ensure the synchronization errors remain within the prescribed upper bound, the coupling strength, attack probability and the average AIC width are co-designed. Elastic interval boundary conditions for aperiodic control are derived via an average control duration analysis. Finally, numerical examples are given to demonstrate the derived results.
研究了抗攻击非周期间歇控制下耦合神经网络的二部均方有界同步问题。提出了一种针对拮抗耦合神经网络中控制器-执行器通道的欺骗攻击模型,解决了通信通道完整性破坏和通过间歇接入点注入恶意命令的问题。通过在间歇控制中加入平均,所提出的策略大大提高了对抗网络对欺骗性致动器的同步鲁棒性。通过对平均AIC区间方法的严密分析,建立了保证耦合神经网络二部均方有界同步的充分条件,放宽了传统的AIC宽度参数严格的上下界。为了保证同步误差在规定的上限内,对耦合强度、攻击概率和平均AIC宽度进行了协同设计。通过对平均控制时间的分析,导出了非周期控制的弹性区间边界条件。最后,通过数值算例对所得结果进行了验证。
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引用次数: 0
Bias correction and instrumental variables for direct data-driven model-reference control 偏差校正和仪器变量直接数据驱动的模型参考控制
IF 2.6 3区 计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-11-01 DOI: 10.1016/j.ejcon.2025.101327
Manas Mejari , Valentina Breschi , Milad Banitalebi Dehkordi , Simone Formentin , Dario Piga
Managing noisy data is a central challenge in direct data-driven control design. We propose an approach for synthesizing model-reference controllers for linear time-invariant (LTI) systems using noisy state-input data, employing novel noise mitigation techniques. We demonstrate that data-based covariance parameterization of the controller enables to incorporate bias-correction and instrumental variable techniques. This reduces measurement noise effects as data volume increases. The number of decision variables remains independent of dataset size, making this method scalable to large datasets. The approach’s effectiveness is demonstrated with a numerical example.
管理噪声数据是直接数据驱动控制设计的核心挑战。我们提出了一种利用噪声状态输入数据合成线性时不变(LTI)系统的模型参考控制器的方法,采用了新的噪声抑制技术。我们证明了基于数据的控制器协方差参数化能够结合偏差校正和工具变量技术。随着数据量的增加,这减少了测量噪声的影响。决策变量的数量与数据集大小无关,使该方法可扩展到大型数据集。通过数值算例验证了该方法的有效性。
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引用次数: 0
Model predictive building climate control for mitigating heat pump noise pollution 模型预测建筑气候控制减轻热泵噪声污染
IF 2.6 3区 计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-11-01 DOI: 10.1016/j.ejcon.2025.101323
Yun Li , Jicheng Shi , Colin N. Jones , Neil Yorke-Smith , Tamas Keviczky
Noise pollution from heat pumps (HPs) has been an emerging concern to their broader adoption, especially in densely populated areas. This paper explores a model predictive control (MPC) approach for climate control of buildings, aimed at minimizing the noise nuisance generated by HPs. By exploiting a piecewise linear approximation of HP noise patterns and assuming linear building thermal dynamics, the proposed design can be generalized to handle various HP acoustic patterns with mixed-integer linear programming (MILP). Additionally, two computationally efficient options for defining the noise cost function in the proposed MPC design are discussed. Numerical experiments on a high-fidelity building simulator are performed to demonstrate the viability and effectiveness of the proposed design. Simulation results show that minimizing the excess of HP noise over ambient noise is effective in mitigating the HP noise nuisance. Further, compared with the conventional MPC-based building climate control scheme, the proposed approach can effectively reduce the HP noise pollution with only a minor energy cost increase.
热泵(HPs)的噪音污染已成为其广泛采用的一个新兴问题,特别是在人口稠密的地区。本文探讨了一种用于建筑物气候控制的模型预测控制(MPC)方法,旨在最大限度地减少hp产生的噪声。通过利用高压噪声模式的分段线性近似并假设线性建筑热动力学,所提出的设计可以推广到使用混合整数线性规划(MILP)处理各种高压声学模式。此外,讨论了在MPC设计中定义噪声代价函数的两种计算效率选项。在高保真建筑模拟器上进行了数值实验,验证了该设计的可行性和有效性。仿真结果表明,减小高压噪声对环境噪声的影响可以有效地减轻高压噪声的危害。此外,与传统的基于mpc的建筑气候控制方案相比,该方法可以有效地降低高压噪声污染,且能源成本增加较少。
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引用次数: 0
A passivity analysis for nonlinear consensus on balanced digraphs 平衡有向图非线性一致的无源性分析
IF 2.6 3区 计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-11-01 DOI: 10.1016/j.ejcon.2025.101368
Feng-Yu Yue, Daniel Zelazo
This work deals with the output consensus problems for multi-agent systems over balanced digraphs. While passivity-based approaches are widely used for analyzing undirected consensus protocols, we show that they are generally not applicable to the directed linear consensus protocol. To address this limitation, we propose a general approach that enables a passivity-based analysis for network systems with directed couplings. Then, we mitigate the complexity introduced by nonlinearities and directed interconnections by reformulating the general output consensus problem as a convergence analysis on a submanifold. Within this framework, we further focus on the stabilization problem, a specific form of the output consensus problem, and establish a sufficient passivity-based condition for stabilizing multi-agent systems over balanced digraphs. The results are supported by a numerical example.
本文研究了平衡有向图上的多智能体系统的输出一致性问题。虽然基于被动性的方法被广泛用于分析无向共识协议,但我们表明它们通常不适用于有向线性共识协议。为了解决这一限制,我们提出了一种通用方法,可以对具有定向耦合的网络系统进行基于无源性的分析。然后,我们通过将一般输出一致性问题重新表述为子流形上的收敛分析,减轻了非线性和有向互连所带来的复杂性。在此框架内,我们进一步关注了稳定问题,即输出共识问题的一种特殊形式,并建立了平衡有向图上多智能体系统稳定的充分无源条件。数值算例验证了计算结果。
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引用次数: 0
Dissipative iFIR filters for data-driven design 耗散iFIR滤波器的数据驱动设计
IF 2.6 3区 计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS Pub Date : 2025-11-01 DOI: 10.1016/j.ejcon.2025.101300
Zixing Wang, Yi Zhang, Fulvio Forni
We tackle the problem of providing closed-loop stability guarantees with a scalable data-driven design. We combine virtual reference feedback tuning with dissipativity constraints on the controller for closed-loop stability. The constraints are formulated as a set of linear inequalities in the frequency domain. This leads to a convex problem that is scalable with respect to the length of the data and the complexity of the controller. An extension of virtual reference feedback tuning to include disturbance dynamics is also discussed. The proposed data-driven control design is illustrated by a soft gripper impedance control example.
我们通过可扩展的数据驱动设计来解决提供闭环稳定性保证的问题。我们将虚拟参考反馈调谐与控制器的耗散性约束相结合以实现闭环稳定性。这些约束在频域中被表述为一组线性不等式。这将导致一个凸问题,该问题与数据的长度和控制器的复杂性有关。讨论了将虚拟参考反馈调谐扩展到扰动动力学的方法。最后以软夹持器阻抗控制为例说明了数据驱动控制设计。
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引用次数: 0
期刊
European Journal of Control
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