Article
Automation & Control Systems
Qinglei Hu, Biru Chi
Summary: This article investigates the problem of autonomous spacecraft rendezvous and docking under the presence of space obstacles, path constraints, and thrust limitations. A combination scheme of guidance and control is proposed using the explicit reference governor (ERG) framework to ensure system stabilization and constraints satisfaction. The artificial potential function (APF) method is employed to guide a collision-free trajectory and the constraints are satisfied by limiting the states within the safe invariant set. Furthermore, a simplified method is proposed to obtain the maximum bound of the Lyapunov-based invariant sets for input boundedness and collision avoidance. The convergence of the system under the potential field is proven through Lyapunov stability analysis. Numerical simulation results demonstrate the comprehensive validation and good performance of the proposed method.
IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS
(2023)
Article
Engineering, Multidisciplinary
Danhe Chen, A. A. Baranov, Chuangge Wang, M. O. Karatunov, N. Yu. Makarov
Summary: This paper proposes a maneuvering method for avoiding collision with space debris objects in the phasing orbit of the initial optimal solution, and formulates relevant dangerous area based on the plane of eccentricity vector components. The method simplifies the calculation of rendezvous maneuvers and allows to find a balance between SO avoiding and fuel consumption reduction.
CMES-COMPUTER MODELING IN ENGINEERING & SCIENCES
(2021)
Article
Engineering, Aerospace
F. Turco, C. Traub, S. Gaisser, J. Burgdorf, S. Klinkner, S. Fasoulas
Summary: This work introduces a tool for the analysis of aerodynamic collision avoidance manoeuvres for satellites in circular Low Earth Orbits. Current space-weather data are employed to estimate the density the satellite encounters. Achievable in-track separation distances following a variation of the ballistic coefficient through a change in attitude are then derived. The influence of a manoeuvre on the conjunction geometry and the collision probability is examined, considering additional constraints for the attitude and uncertainties in the used parameters.
Article
Engineering, Aerospace
Yuanzhuo Geng, James Douglas Biggs, Chuanjiang Li
Summary: This article presents a control method based on the dual 2x2 unitary groups, defining geometric sliding surfaces and using a chattering-free reaching law to control the resulting pose trajectory. The approach allows for analytically selecting an appropriate desired attitude under path constraints.
IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS
(2021)
Article
Automation & Control Systems
Daniel Aguilar-Marsillach, Stefano Di Cairano, Avishai Weiss
Summary: We have developed a spacecraft rendezvous policy that can ensure safe and collision-free trajectories in the event of various thrust failure scenarios. By using backward reachable sets (RSs), we are able to identify the unsafe region where a collision cannot be avoided with the remaining available thrust. Our approach involves guiding the chaser spacecraft towards the target using model predictive control (MPC) to ensure safe aborts by avoiding the unsafe region, which is locally convexified with half-spaces. Simulations on different orbits have demonstrated the effectiveness of our approach in achieving safe aborts, even in the presence of multiple thruster failures or total thruster failure, and its robustness to unmodeled orbital perturbations.
IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY
(2023)
Article
Engineering, Aerospace
Zijie Lin, Baolin Wu, Danwei Wang
Summary: This article discusses a space mission in which a chaser spacecraft tracks a rotating target at close range while adhering to motion constraints. The control objective is to maintain the chaser at a desired relative position above the target's specific point and ensure its line-of-sight remains focused on the target. The proximity maneuver involves considering collision avoidance for position and a forbidden zone for attitude. A safety robust control law is developed using superquadrics curved surface to describe the position constraint and an inequality constraint based on SO(3) for attitude constraint. Simulation results verify the effectiveness of the proposed control scheme, which can be applied to other observation missions as well.
IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS
(2023)
Article
Computer Science, Artificial Intelligence
Ali Heydari
Summary: This study investigates optimal control of nonlinear impulsive systems with free impulse instants, developing a scheme based on adaptive dynamic programming. The scheme handles single and multiple impulsive actuators efficiently and is applied to challenging problems such as spacecraft orbital maneuver.
IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS
(2021)
Article
Automation & Control Systems
Lu Cao, Bing Xiao
Summary: This article proposes a suboptimal velocity artificial potential-based control scheme to provide obstacle avoidance capability for spacecraft on-orbital services and docking. The approach utilizes an ellipsoid model and an eigenvalue algorithm to accurately describe the spacecraft and obstacles. It also uses a potential sigmoid function to generate repulsive force and a velocity artificial potential function-based controller to ensure a safe rendezvous with reduced fuel cost.
TRANSACTIONS OF THE INSTITUTE OF MEASUREMENT AND CONTROL
(2022)
Article
Engineering, Aerospace
Bo Zhang, Ying Zhang, Junqiang Bai
Summary: In this paper, a saturated adaptive six-degree-of-freedom (6-DOF) control law is proposed for asteroid landing missions. It uses twistors and a combination of backstepping method and artificial potential field technique to avoid collisions and consider the spacecraft's inertial parameters and uncertainties.
IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS
(2022)
Article
Engineering, Aerospace
Kai Zhang, Yang Liu, Jiubin Tan
Summary: This article proposes dynamic event-triggered control and self-triggered control methods to achieve the semi-global finite-time stabilization of spacecraft rendezvous system with input constraints. Bounded dynamic ETC algorithm and dynamic STC algorithm are designed to save communication resources. By exploring the properties of the parametric Lyapunov equation, a positive minimal interevent time can be obtained to avoid the Zeno phenomenon. Simulation results verify the effectiveness of the algorithms.
IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS
(2022)
Article
Engineering, Aerospace
Wei Wang, Di Wu, Ran Sun, Hexi Baoyin
Summary: This paper analyzes the projected circular orbit for spacecraft formation flying near a slowly rotating asteroid, and proposes a fuel-optimal control law for establishing the target orbit.
IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS
(2022)
Article
Engineering, Aerospace
Mi Wang, Huai-Ning Wu
Summary: This article studies the autonomous game control problem for spacecraft rendezvous by using the adaptive perception and interaction. It proposes an autonomous game control method for spacecraft a by formulating the rendezvous system as a two-player linear quadratic differential game with unknown intent of spacecraft o, and using the adaptive perception and interaction. The method removes the requirement for knowing the intent of spacecraft o, relaxes the persistent excitation condition in traditional adaptive estimation methods, and guarantees the asymptotic stability of the rendezvous system.
IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS
(2023)
Article
Automation & Control Systems
Qinglei Hu, Yueyang Liu, Youmin Zhang
Summary: This article describes a practical solution for path-constrained proximity maneuvers of spacecraft, utilizing controller enforcement of actuator magnitude constraints without velocity measurement. The controller is constructed from a potential function method repelling the spacecraft from possible collisions, overcoming the local minima problem. The control capability can be estimated and adjusted by changing feedback gains under any control limit, with explicit calculation of specific performance for guaranteed safety.
IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS
(2022)
Article
Engineering, Civil
Xuxi Yang, Peng Wei
Summary: The use of eVTOL aircraft for efficient, high-speed air transportation in urban areas is gaining popularity, but managing safety in congested urban airspace poses unprecedented challenges.
IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS
(2021)
Article
Automation & Control Systems
Weiwei Luo, Bin Zhou, Liang He, Guang-Ren Duan
Summary: This article investigates the global stabilization problem of the circular orbit rendezvous system with actuator saturation and time-delay, proposes linear state feedback controllers to address the issue, and proves the global stability of the closed-loop system. Optimal feedback gain is obtained in the delay-free case, and simulations demonstrate the effectiveness of the presented methods.
IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS
(2022)
Article
Engineering, Electrical & Electronic
Qing Wang, Xiwang Dong, Jinhu Lu, Zhang Ren
Summary: This paper studies the problem of time-varying output formation tracking for directed multi-agent systems, where the leader has unknown input and each follower has nonidentical dynamics. The main objective of this paper is to construct a fully distributed controller that enables the followers to track the leader's output and realize the expected formation simultaneously. Two adaptive observers are constructed to estimate the states of the leader and followers, respectively, by exploiting neighboring information and local estimation. A fully distributed TVOFT control protocol is developed using the distributed observers and the expected time-varying formation vector, and the parameters of the controller are designed through a three-step algorithm. The TVOFT criteria for the considered closed-loop multi-agent systems are obtained based on the Lyapunov stability theory and output regulation method.
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS
(2023)
Article
Automation & Control Systems
Guoliang Zhu, Kexin Liu, Haibo Gu, Lei Chen, Jinhu Lu
Summary: This article investigates the consensus-based formation control problem in multi-agent systems with unknown disturbances. The proposed node-based adaptive controllers eliminate the effect of disturbances and avoid continuous communications. It is shown that the formation errors tend to zero when the derivatives of disturbances belong to Script capital L2 $$ {\mathcal{L}}_2 $$ space or are bounded by a small threshold. Zeno behaviors and global information are excluded. Numerical simulations validate the effectiveness of the proposed approaches.
INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL
(2023)
Article
Automation & Control Systems
Bing Mao, Xiaoqun Wu, Jinhu Lu, Guanrong Chen
Summary: This article investigates the uniformly predefined-time bounded consensus of leader-following multiagent systems with unknown system nonlinearity and external disturbance. Distributed adaptive fuzzy control is used to analyze and design the system, achieving global consensus within a predefined time.
IEEE TRANSACTIONS ON CYBERNETICS
(2023)
Article
Automation & Control Systems
Jialing Zhou, Yuezu Lv, Guanghui Wen, Jinhu Lu, Dezhi Zheng
Summary: This article investigates the distributed Nash equilibrium seeking problem in multicoalition games, considering the agreement demand within coalitions. The proposed algorithm achieves linear convergence and unifies networked games among individual players and distributed optimization in a consistent-constrained multicoalition game framework.
IEEE TRANSACTIONS ON CYBERNETICS
(2023)
Article
Automation & Control Systems
Shaolin Tan, Zhihong Fang, Yaonan Wang, Jinhu Lu
Summary: This article proposes an augmented game approach to analyze distributed learning dynamics in multiagent games. By designing the augmented game, the coupling structure of utility functions among players can be reformulated into a connected network while preserving the Nash equilibria. The proposed approach generates both deterministic and stochastic distributed gradient play and provides negative convergent results.
IEEE TRANSACTIONS ON CYBERNETICS
(2023)
Article
Automation & Control Systems
Qing Wang, Xiwang Dong, Guanghui Wen, Jinhu Lu, Zhang Ren
Summary: This article investigates the practical output containment problem for heterogeneous nonlinear multiagent systems under external disturbances and proposes a distributed observer-based control protocol to overcome the challenges of coupling, nonlinearities, and state dimensions. By constructing adaptive state observers and utilizing neural network approximation to compensate for unknown nonlinearities, a practical output containment control protocol is generated. The derived practical output containment criteria for the closed-loop system are derived based on the Lyapunov stability theory and the output regulation method.
IEEE TRANSACTIONS ON CYBERNETICS
(2023)
Article
Engineering, Electrical & Electronic
Hairong Dong, Jinxing Wang, Xingtang Wu, Min Zhou, Jinhu Lu
Summary: This article proposes a Gaussian noise data augmentation-based delay prediction method to improve the accuracy of predicting delays for high-speed railways. By adding Gaussian noise to the original data and selecting delay data as the training data for different machine learning models, the proposed method significantly improves the prediction accuracy under different scenarios. The results are helpful for real-time train rescheduling and passenger management, thus improving the emergency response capabilities of high-speed railways.
IEEE INTELLIGENT TRANSPORTATION SYSTEMS MAGAZINE
(2023)
Article
Engineering, Aerospace
Qingyu Qu, Kexin Liu, Xijun Li, Yunfan Zhou, Jinhu Lu
Summary: This article develops an intelligent Earth observation satellites (EOSs) scheduling framework using imitation learning based on mixed integer linear programming (MILP), which includes preprocessing, modeling, and solving processes. The framework effectively solves the complex combinatorial optimization problem of EOSs scheduling and improves reliability and efficiency.
IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS
(2023)
Article
Automation & Control Systems
Kunrui Ze, Wei Wang, Kexin Liu, Jinhu Lu
Summary: This article presents a novel method for optimization-based obstacle avoidance and distributed regular polygon time-varying formation control for multiple unmanned aerial vehicle systems (UAVs) in clutter environment. The method involves a leader-following structure with a directed communication graph, real-time trajectory planning for the leader UAV, and an optimization-based safe trajectory and formation size online planning algorithm. The method also includes distributed smooth adaptive filters to estimate the safe trajectory and formation size, as well as a geometric tracking controller for each UAV. Experimental results demonstrate the effectiveness of the proposed method.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Automation & Control Systems
Zhi Feng, Guoqiang Hu, Xiwang Dong, Jinhu Lu
Summary: This article addresses finite-time connectivity-preserving rendezvous problems of networked uncertain Euler-Lagrange systems, where two types of time-varying leaders are investigated, and only a subset of followers can have access to the leader's trajectory. The distributed estimation and control architecture is then established to solve this problem with an emphasis on the settling-time estimation.
IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS
(2023)
Article
Engineering, Multidisciplinary
Zhi Feng, Guoqiang Hu, Xiwang Dong, Jinhu Lu
Summary: This article presents the design of adaptively distributed Nash Equilibrium (NE) seeking algorithms for heterogeneous general linear multi-agent systems in noncooperative games. The algorithms adjust the edges of the graph to deal with nonidentical dynamics and seeking NE. Global asymptotic convergence is achieved through leveraging monotone and matrix properties.
IEEE TRANSACTIONS ON NETWORK SCIENCE AND ENGINEERING
(2023)
Article
Engineering, Multidisciplinary
Juyi Li, Xiaoqun Wu, Su Zhong, Ruguo Fan, Jie Hu, Jinhu Lu
Summary: This paper introduces the use of hypergraphs and game theory to study the investment environment. The results obtained from empirical analysis provide meaningful insights for corporate decision-making and government regulation.
IEEE TRANSACTIONS ON NETWORK SCIENCE AND ENGINEERING
(2023)
Article
Engineering, Multidisciplinary
Dandan Wang, Jialing Zhou, Guanghui Wen, Jinhu Lu, Guanrong Chen
Summary: This paper investigates the distributed optimal consensus problem for second-order multi-agent systems in the presence of system disturbances and cyber attacks. Novel distributed event-triggered controllers are designed to achieve low resource consumption and prevent information leakage. Sufficient conditions are derived to ensure exponential consensus on the optimal solution for all controlled agents.
IEEE TRANSACTIONS ON NETWORK SCIENCE AND ENGINEERING
(2023)
Article
Computer Science, Cybernetics
Wenbo Lian, Xingtang Wu, Min Zhou, Jinhu Lu, Hairong Dong
Summary: This study proposes a novel bi-directional delay propagation model for high-speed railways, taking into account the trains' operation trajectory and stations' withholding strategy. The model accurately reveals delay propagation and the impact of section disruption and section temporary speed limit on delays. The simulations demonstrate the relationship between disturbance duration and primary delay, as well as between temporarily limited velocity and primary delay.
IEEE TRANSACTIONS ON COMPUTATIONAL SOCIAL SYSTEMS
(2023)
Article
Computer Science, Artificial Intelligence
Tian Wang, Jiahui Chen, Jinhu Lu, Kexin Liu, Aichun Zhu, Hichem Snoussi, Baochang Zhang
Summary: This paper proposes a method called S(2)TAT network for modeling the spatiotemporal relationship of traffic data. The method synchronously models the nonlocal spatiotemporal relationship using an integrated attention mechanism and graph convolution, and handles the heterogeneity of data using timewise graph convolution and multihead mechanism. Experimental results demonstrate the effectiveness of the proposed method.
IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS
(2023)