4th. International Conference on Engineering and Natural Sciences (ICENS), Kyyiv, Ukrayna, 2 - 06 Mayıs 2018, ss.418
Fuzzy logic control technique is one of the modern control methods for decision making of the
systems. By using fuzzy logic approach, many different decision options can be applied to the systems.
However, this approach needs some knowledge about the system conditions. In this conference
paper, fuzzy logic controller approach is applied to a fixed wing (Ultrastick-25-e) unmanned aerial
vehicle (UAV) which exists in the literature and aerodynamic parameters needed for dynamic
equations are obtained from the literature. According to different fuzzy rules and membership
functions, fuzzy inference system is obtained for different aircraft dynamics such as roll, pitch, yaw
and altitude etc. characteristics. Responses of the dynamic state variables and their outputs are
investigated individually by using transfer functions and fuzzy logic rules. In this analysis, gust
disturbance is not taken into account for UAV dynamic equations in this level of analysis. Obtained
results will be compared to previous and future studies of UAV control.