Nonlinear Flight Control System with Neural Networks

Abstract

In this study an adaptive critic based neural network controller is developed to obtain near optimal control1 laws for a nonlinear automatic flight control system. The adaptive critic approach consists of two neural networks. The first network, called the critic, captures the mapping between the states of a dynamical system and the co-states that arise in an optimal control problem. The second network, called the action network, maps the states of a system to the control. This study uses nonlinear aircraft models in the stall regions from a paper (Garrad and Jordan2 to develop optimal neural controllers for an aircraft; we then compare the results with singular perturbation based nonlinear controllers developed in the literature. The results show that with the neural controllers the aircraft can operate in a broader region of angles of attack beyond stall as compared to other linear and nonlinear controllers. © 2001 by Balakrishnan. Published by The American Institute of Aeronautics and Astronautics Inc.

Department(s)

Mechanical and Aerospace Engineering

International Standard Book Number (ISBN)

978-156347945-8

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2024 American Institute of Aeronautics and Astronautics, All rights reserved.

Publication Date

01 Dec 2001

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