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Three-dimensional Event-triggered Fixed-time Cooperative Guidance Law Against Maneuvering Target with the Constraint of Relative Impact Angles by Zhongyuan Chen; Xiaoming Liu; Wanchun Chen is a Engineering article available to read on EtoBox.

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In order to improve the flexibility and reduce the energy consumption of cooperative guidance laws considering the impact angle constraint, this paper proposes a three-dimensional event-triggered fixed-time cooperative guidance law with the constraint of relative impact angles. First, for the purpose of avoiding the precision degradation due to the estimation error of time-to-go especially facing a maneuvering target, the range-to-go and velocity along the line-of-sight (LOS) are taken as the coordination variables for achieving time-cooperative guidance. Secondly, instead of assigning specific desired impact angles for each missile, only the consensus errors of relative impact angles are utilized as the coordination variables for achieving space-cooperative guidance, which can avoid continually maneuvering for maintaining the constant desired impact angles, thus reducing the fuel consumption. Next, the guidance laws along the LOS and perpendicular to the LOS are developed, and the event-triggering mechanisms are designed to reduce the update frequency of cooperative guidance commands, thus further reducing the energy consumption. To guarantee the convergence rate, the fixed-time c

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Author

Zhongyuan Chen; Xiaoming Liu; Wanchun Chen

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Engineering (Physical Sciences)