Ahmed Elsayed

Work place: Shoubra Faculty of Engineering, Benha University, Egypt

E-mail: eng_medoelbanna@yahoo.com


Research Interests: Engineering


Ahmed Elsayed was born on August 30, 1980. He received the B.Sc. degree from Military Technical College (MTC) in 2002 and M.Sc from Benha University in 2010,. Now he is Ph.D Student in Benha University. In 2005, he joined the Benha University, in The Egypt. His representative published articles lists as follow: Telemetry Microcomputer Application in Satellites OBC (IEEE international conference AHICI, 2009), Precise Method of Orbit Height Determination (38th Assembly of the Committee on Space Research (COSPAR) in Bremen 2010), and Modeling of a Small Unmanned Aerial Vehicle (international journal of mechanical, aerospace, industrial and mechatronics engineering Vol: 9, No: 3 2015). His research interests include aerospace engineering, microprocessor architecture, 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.

[...] Read more.
Other Articles