Multi‐vehicle formation in a controllable force field with non‐identical controller gains. Issue 6 (1st April 2018)

• Record Type: Journal Article
• Authors: Jain, Anoop; Ghose, Debasish; Menon, Prathyush P.
• Is Part Of: IET control theory & applications. Volume 12:Issue 6(2018)
• Page Start: 802
• Page End: 811
• Publication Date: 2018-04-01
• Subjects: Lyapunov methods -- autonomous aerial vehicles; multivehicle formation system -- non identical controller gains -- balanced collective formation -- collective centroid -- Lyapunov analysis -- numerical simulations -- unmanned aerial vehicles; Control theory -- Periodicals; Automatic control -- Periodicals; 629.8312
• DOI: 10.1049/iet-cta.2017.0651
• Languages: English
• ISSNs: 1751-8644

Abstract

Abstract : In this brief, a non‐identical gain based control design scheme is proposed to stabilise balanced collective formation in multi‐vehicle systems, modelled with non‐holonomic unicycle dynamics. Balanced collective formation refers to a situation in which the vehicles' motion causes their positional centroid to become stationary. This study mainly focuses on achieving stable balanced collective formation about the prescribed location of the collective centroid along with desired orientations of the vehicles. It is assumed that the vehicles are moving in a force field which is controlled externally. The proposed control algorithm consists of two controls – one of the controls, pertaining to the external force field, is directly applied to the system, and assumes the same value for all the vehicles. While the other control, which operates with heterogeneous gains, provides the steering force to the vehicles and is derived using Lyapunov analysis. Theoretical findings are validated through numerical simulations.