E3S Web Conf.
Volume 104, 2019International Conference “Energy Efficiency and Energy Saving in Technical Systems” (EEESTS-2019)
|Number of page(s)||11|
|Section||Integrated Measurement Information Processing Devices|
|Published online||21 June 2019|
Control of longitudinal flight dynamics of a fixedwing UAV using LQR, LQG and nonlinear control
Southern Federal University, Dept. of Synergetics and Control Processes, Taganrog, Russia
* Corresponding author: email@example.com
This paper aim is to present a comparative study between Linear Quadratic Regulator (LQR), Linear Quadratic Gaussian (LQG) and nonlinear controllers for pitch control of a fixed-wing Unmanned Aerial Vehicle (UAV). Due to a good stability margin and strong robustness LQR has been selected. LQG was chosen because is able to overcome external disturbances. Kalman Filter controller was also introduced to the fixed-wing UAV flight control. Further, we designed an autopilot that controls the pitch angle of the fixed-wing UAV. In the end, the control laws are simulated in Matlab/Simulink. The results obtained are compared to see which method is faster, more reliable and more robust.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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