Observer-Free Output Feedback Adaptive Control for Multivehicle Systems with Exogenous Disturbances

Abstract

A new observer-free output feedback adaptive control, (OF)2AC, method is proposed for continuous-time, minimum phase, and high-order linear multivehicle systems subject to exogenous disturbances (hereinafter referred to as "uncertain multivehicle systems"). In particular, the (OF)2AC is based on a nonminimal state-space realization for each follower vehicle of the multivehicle system, where this realization generates an expanded set of states using the filtered input, filtered output, and their derivatives of the follower vehicles. The (OF)2AC consists of i) a local cooperative controller and ii) a vehicle-level controller for each follower vehicle. Specifically, part i) of the proposed control method addresses the leader-follower containment control problem by receiving the relative output measurements of the neighboring vehicles and its part ii) consists of an augmenting adaptive controller for stabilization and command following in the presence of exogenous disturbances. Two illustrative numerical examples are provided to demonstrate efficacy of the (OF)2AC.

Meeting Name

2018 AIAA Guidance, Navigation, and Control Conference (2018: Jan. 8-12, Kissimmee, FL)

Department(s)

Electrical and Computer Engineering

Keywords and Phrases

Aviation; Continuous time systems; Controllers; Feedback; Navigation; Vehicles; Adaptive Control; Adaptive controllers; Command following; Containment control; Exogenous disturbances; Level controllers; Multi-vehicle systems; State space realization; Adaptive control systems

International Standard Book Number (ISBN)

978-1-62410-526-5

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2018 American Institute of Aeronautics and Astronautics (AIAA), All rights reserved.

Publication Date

01 Jan 2018

Link to Full Text

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