Estimation of Small Unmanned Aerial Vehicle Lateral Dynamic Model with System Identification Approaches
Abstract
Modeling of unmanned aerial vehicle (UAV) with system identification is very important in terms of its model-based effective control. The modeling of UAV is required for aircraft crashes, analyzing autonomous aircrafts, preventing external disturbances, pre-flight analysis. However, since UAV has nonlinear inherent dynamics including inherent chaoticity and fractality, it becomes difficult to obtain a mathematical model under external disturbance. In this study, some of the inherent nonlinear dynamics of UAV are linearized and the model of UAV is obtained by system identification approaches under external disturbance. The linearized lateral dynamics of a fixed wing UAV is used in this study. Further, the flight motion equations applied to fixed wing UAV have been utilized for obtaining the coefficients of lateral model for straight and level flight. The roll angles are calculated using transfer functions for aileron, rudder and deflections inputs. The autoregressive exogenous (ARX), autoregressive moving average with exogenous (ARMAX) and output error (OE) parametric system identification approaches are performed to estimate UAV lateral dynamic system response as using empirical input-output data sets. The accuracy of parametric model estimation and model degrees are compared for different external disturbance effects.
Thanks
Preliminary results had been presented at 3rd INTERNATIONAL ENGINEERING RESEARCH SYMPOSIUM (INERS'19).
References
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Abstract
References
- A. Loya, M. Duraid, K. Maqsood, R. R. Khan, “The implementation and lateral control optimization of a UAV based on phase lead compensator and signal constraint controller.” Engineering, vol. 10. 10, 2018.
- P. D. Jameson, A. Cooke, “Developing real-time system identification for UAVs.” 2012 UKACC International Conference on Control, 2012.
- W. Saengphet, S. Tantrairatn, C. Thumtae, J. Srisertpol, “Implementation of system identification and flight control system for UAV.”, 3rd International and Flight Control System for UAV, 2017.
- A. Dorobantu, A. Murch, B. Mettler, G. Balas, ”System identification for small, low-cost, fixed-wing unmanned aircraft.” Journal of Aircraft, vol. 50. 4, 2013, pp.1117-1130.
- V. Puttige, S. Anavatti, “Real-time system identification of unmanned aerial vehicles: A multi-network approach.” Journal of Computers, vol. 3.7, 2008.
- W. Wei, M. B. Tischler, N. Schwartz, K. Cohen, “System identification and flight control of an unmanned quadrotor.” Advanced UAV Aerodynamics, Flight Stability and Control: Novel Concepts, Theory and Applications, 2017, pp.695-727.
- A. E. Ahmed, A. Hafez, A. N. Ouda, H. E. H. Ahmed, H. M. Abd-Elkader, “Modeling of a small unmanned aerial vehicle.” International Journal of Aerospace and Mechanical Engineering, vol. 9. 3, 2015.
- L. Ljung, System identification, System identification theory for the users, 1999, p. 609.
Details
| Primary Language | English |
|---|---|
| Subjects | Electrical Engineering |
| Journal Section | Araştırma Articlessi |
| Authors | |
| Publication Date | April 30, 2020 |
| Published in Issue | Year 2020 Volume: 8 Issue: 2 |
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