This article proposes a differential game-based control scheme to address an attitude takeover control problem via microsatellites attached to the surface of target spacecraft. First, the attitude dynamics of combined spacecraft is reformulated as a general form so as to apply the reinforcement learning framework. Then, quadratic and Arctanh-type performance indices are designed in two cases of free input and input saturation, respectively. Accordingly, optimal control policy of each microsatellite is obtained and is dependent on value functions, which are solutions of a set of Hamilton–Jacobi–Bellman (HJB) equations. Single layer neural networks are employed to approximate value functions by policy iteration and the weights vectors are updated with the help of the concurrent learning algorithm so that the persistent excitation condition of control errors is loosened. Moreover, the necessity of interaction among microsatellites is eliminated by using a tracking differentiator technique to estimate angular accelerations which are not available directly through onboard devices. Stability of the closed-loop system is guaranteed by the Lyapunov method. Three cases of simulation are carried out to demonstrate the robustness and optimality of the proposed control scheme and to validate the effectiveness of the controller in the presence of actuators saturation.

Baolin Wu

Keyu Chen

Danwei Wang

Yuxiang Sun

IEEE Transactions on Control of Network Systems

IEEE TRANSACTIONS ON CONTROL OF NETWORK SYSTEMS 致力于及时发表控制系统和网络科学交叉领域的高影响力论文。该期刊特别关注网络控制系统的分析、设计和实施以及网络控制方面的研究。相关工作包括从控制系统的基础研究到网络自动控制的工程解决方案设计的全部范围。该期刊涵盖的主题包括：网络的协调控制和估计、传感器网络的控制和计算、通信约束下的控制、通信、计算机、交通等应用领域中使用的网络动态中出现的控制和性能分析问题, 制造, 网络排名和聚合, 社会网络, 生物学, 电力系统, 经济学, 受控网络中的活动同步, 受控网络的稳定性分析, 网络作为混合动力系统的分析。

The IEEE Transactions on Control of Network Systems aims to publish high-impact papers in the intersection of control systems and network science in a timely manner. This journal particularly focuses on the analysis, design, and implementation of network control systems, as well as research in network control. The scope of related work encompasses everything from fundamental research in control systems to the engineering design of networked automatic control solutions. Topics covered by the journal include coordinated control and estimation of networks, control and computation of sensor networks, control under communication constraints, and control and performance analysis issues arising in applications such as communications, computing, and transportation. Additionally, it includes manufacturing, network ranking and aggregation, social networks, biology, power systems, economics, activity synchronization in controlled networks, stability analysis of controlled networks, and the analysis of networks as hybrid dynamical systems.

《IEEE Transactions on Control of Network Systems》致力于及时发表控制系统与网络科学交叉领域的高影响力论文。该期刊特别关注网络控制系统的分析、设计和实施，以及网络控制方面的研究。相关工作涵盖从控制系统的基础研究到网络自动控制的工程解决方案设计的各个方面。期刊涉及的主题包括：网络的协调控制与估计、传感器网络的控制与计算、在通信约束下的控制、以及在通信、计算机、交通等应用领域中出现的网络动态控制与性能分析问题。此外，还包括制造、网络排名与聚合、社会网络、生物学、电力系统、经济学、受控网络中的活动同步、受控网络的稳定性分析，以及将网络视为混合动力系统的分析。

Category	Quartile
计算机科学	3
计算机科学, 自动化与控制系统	3
计算机科学, 计算机信息系统	3

Spacecraft Attitude Takeover Control by Multiple Microsatellites Using Differential Game

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Category	Quartile
COMPUTER SCIENCE, INFORMATION SYSTEMS	1