An improved dynamic model identification method for small unmanned helicopter
Aircraft Engineering and Aerospace Technology
ISSN: 0002-2667
Article publication date: 12 December 2023
Issue publication date: 6 February 2024
Abstract
Purpose
The purpose of this paper is to introduce an improved system identification method for small unmanned helicopters combining adaptive ant colony optimization algorithm and Levy’s method and to solve the problem of low model prediction accuracy caused by low-frequency domain curve fitting in the small unmanned helicopter frequency domain parameter identification method.
Design/methodology/approach
This method uses the Levy method to obtain the initial parameters of the fitting model, uses the global optimization characteristics of the adaptive ant colony algorithm and the advantages of avoiding the “premature” phenomenon to optimize the initial parameters and finally obtains a small unmanned helicopter through computational optimization Kinetic models under lateral channel and longitudinal channel.
Findings
The algorithm is verified by flight test data. The verification results show that the established dynamic model has high identification accuracy and can accurately reflect the dynamic characteristics of small unmanned helicopter flight.
Originality/value
This paper presents a novel and improved frequency domain identification method for small unmanned helicopters. Compared with the conventional method, this method improves the identification accuracy and reduces the identification error.
Keywords
Acknowledgements
Funding: The authors declare that no funds, grants or other support were received during the preparation of this manuscript.
Competing interests: The authors have no relevant financial or nonfinancial interests to disclose.
Ethics approval: Not applicable.
Data availability: The data sets generated during and analyzed during the current study are not publicly available due to for internal research of the research group but are available from the corresponding author on reasonable request.
Citation
Zhou, J., Liu, S., Lu, J. and Liu, X. (2024), "An improved dynamic model identification method for small unmanned helicopter", Aircraft Engineering and Aerospace Technology, Vol. 96 No. 1, pp. 175-183. https://doi.org/10.1108/AEAT-05-2023-0145
Publisher
:Emerald Publishing Limited
Copyright © 2023, Emerald Publishing Limited