Event-triggered prescribed performance control of multi-spacecraft formation with communication and computation constraints

Liu, Yan; Shi, Mengji; Li, Weihao; Qin, Kaiyu

doi:10.1016/j.ast.2023.108506

Cited by 3 publications

(2 citation statements)

References 36 publications

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“…Problem 1. Given the MAS, composed of the system (3) and the exosystem (4), and the switching digraph  𝜎(t) , design an adaptive distributed control law as (5) such that, for any x i (0), 𝜒 i (0) and x 0 (0), x i (t), 𝜒 i (t) and x 0 (t) are always bounded over [0, ∞), and satisfy lim t→+∞…”

Section: Problem Formulation and Preliminariesmentioning

confidence: 99%

Adaptive leader‐following formation for high‐order nonlinear multi‐agent systems with an uncertain leader system over switching networks

Luo,

Liu

2024

Intl J Robust & Nonlinear

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In this article, we study the leader‐following formation problem for high‐order nonlinear multi‐agent systems with an uncertain leader system over switching networks. We first divide the uncertain leader system into two types and then design adaptive distributed observers for them respectively. Then, based on our designed observers, we synthesize two adaptive distributed control laws respectively to solve our problem, forcing the errors between the states of the followers and that of the leader to the prescribed time‐varying desired formation vectors. Finally, our main result is illustrated by two examples.

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Section: Problem Formulation and Preliminariesmentioning

confidence: 99%

Adaptive leader‐following formation for high‐order nonlinear multi‐agent systems with an uncertain leader system over switching networks

Luo,

Liu

2024

Intl J Robust & Nonlinear

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“…Communication also forms a social system that needs each other. Therefore, communication and society cannot be separated (Hagemann et al, 2023;Liu et al, 2023). Communication is information conveyed from one place to another by transferring information, ideas, emotions, skills, and others by using symbols such as words, figures, and graphics, as well as giving convincing speech and writing (Eman et al, 2023;Zhong et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

Leadership effectiveness in improving employee performance

Dzikriana,

Samtiarico,

Nahriyah

et al. 2024

ijafibs

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Effective management, thinking about the importance of human resources. Employee performance is an important factor influencing success. In an organization, this is one of the most important functions of a company. This study aims to determine the variables that affect employee job satisfaction and develop a theoretical basis and research model. This study used an associative descriptive quantitative method with a population of 35 respondents drawn into a sample using non-probability sampling, using saturated sampling / total sampling method. Data analysis techniques using linear regression with the help of SPSS software version 26. The results of this study show that the first hypothesis states that employee performance is influenced by leadership style; the more effective the leader makes decisions, the more employee performance increases. The second hypothesis states that communication shows no significant effect on employee performance. The third hypothesis is that employee performance is influenced by employee leadership and communication styles that can simultaneously improve employee performance. This research is expected to provide theoretical contributions to the literature in this context, certainly in the context of human resource management

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Distributed event‐triggered fixed‐time formation tracking control for multi‐spacecraft systems based on adaptive immersion and invariance technique

Wu,

Wei,

Wang

et al. 2024

Intl J Robust & Nonlinear

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In this study, the problem of fixed‐time formation tracking for multi‐spacecraft systems without internal collisions was investigated. Aiming to ensure that the formation members can accurately realize and maintain the required configuration within the user‐given time, we designed a novel adaptive immersion and invariance (I&I)‐based control protocol. The novelty here lies in two aspects. First and foremost, this study was based on the adaptive I&I technique, combined with a new artificial potential function, to achieve the desired formation tracking without internal collision. Second, unlike the asymptotic convergence of the traditional I&I‐related works, to guarantee the fixed‐time stability, the proposed protocol introduced the prescribed performance control, which can also alleviate the possible system performance degradation caused by the non‐periodic control signal update of the event‐triggered mechanism. Further, the introduction of the event‐triggered mechanism can reduce the unnecessary information interaction. Lyapunov stability analysis shows that this proposed protocol can enable the defined implicit manifold to converge to the origin for the most initial conditions. Also, benefiting from the prescribed performance techniques, the convergence time can eliminate the dependence of the system on designed controller parameters or initial system conditions, relying only on the actual mission requirements. In addition, we adopted a linear extended state observer to deal with the parameter uncertainties and external disturbances, and used the I&I adaption to estimate the observer errors, thus further improving the system performance. Moreover, a new exponential‐type artificial potential function was designed to avoid close proximity between formation members and prevent internal collisions. Finally, numerical simulations were conducted to verify the theoretical results.

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Event-triggered prescribed performance control of multi-spacecraft formation with communication and computation constraints

Cited by 3 publications

References 36 publications

Adaptive leader‐following formation for high‐order nonlinear multi‐agent systems with an uncertain leader system over switching networks

Adaptive leader‐following formation for high‐order nonlinear multi‐agent systems with an uncertain leader system over switching networks

Leadership effectiveness in improving employee performance

Distributed event‐triggered fixed‐time formation tracking control for multi‐spacecraft systems based on adaptive immersion and invariance technique

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