A. N. Ouda

Work place: Military technical college, Cairo, Egypt

E-mail: ahnasroda@yahoo.com


Research Interests: Computational Engineering, Engineering


Ahmed N. Ouda was born on February 1, 1977. He received the M.Sc. and PH.D. Degrees from Military Technical College, Egypt, in 2005 and 2012, respectively. In 2012, he joined the Military Technical College, Egypt, as a Teacher. His representative published articles lists as follow, Hybrid Fuzzy-Conventional Controller for Command Line-Of-Sight Guidance System(4th International Conference on Electrical Engineering ICEENG 2004), Robust CLOS Guidance and Control: Part-3: HIL Systems Simulation(14th International Conference on Aerospace Sciences & Aviation Technology 2011), Design And Analysis of Quad-Copter Classical Control(16th International Conference on Aerospace Sciences & Aviation Technology 2015). His research interests include aerospace engineering, classical and advanced control theory, especially his researches in aerospace engineering and embedded system design.

Author Articles
Design of Longitudinal Motion Controller of a Small Unmanned Aerial Vehicle

By Ahmed Elsayed Ashraf Hafez A. N. Ouda Hossam Eldin Hussein Ahmed Hala Mohamed Abd-Elkader

DOI: https://doi.org/10.5815/ijisa.2015.10.05, Pub. Date: 8 Sep. 2015

The need for autonomous Unmanned Aerial Vehicles (UAVs) is very interesting nowadays. Autonomous UAVs provide the possibility of performing tasks and missions that are currently hazardous or can cost humans or money, enable autonomous search, persistent combat intelligence, surveillance and reconnaissance (ISR), and many other applications. This paper presents an overview of autopilot design with a detailed design of longitudinal autopilot of a Small Unmanned Aerial Vehicle (SUAV). The designed autopilot is applied to an Ultrastick-25e fixed wing UAV depending on longitudinal linear model and analytic linear model with trimmed values of straight and leveling scenario. The longitudinal motion controller design is started with the design of most inner loop (pitch rate feedback) of the longitudinal system, then pitch tracker design with a Proportional Integral (PI)- controller. The guidance and control system is related with the design of altitude hold controller with P-controller as an example of outer loop controller design. The performance of two classic controller approaches for the design of autopilot are compared and evaluated for both linear and non-linear models. The proposed controller is chosen for design due to its higher performance than the classic one. At last the climbing turn scenario is applied to the whole autopilot (longitudinal and lateral) for the evaluation process. The results show a good performance in both disturbance rejection and robustness against sensors noise.

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