Hossam Eldin Hussein Ahmed

Work place: Faculty of Electronic Engineering, Menufiya University, Menouf, Egypt

E-mail: hhossamkh@yahoo.com


Research Interests: Interaction Design, Computer systems and computational processes, Computer Architecture and Organization, Processor Design, Database Management System, Multimedia Information System, Data Structures and Algorithms


Hossam Eldin H. Ahmed received a BSC (Hons) in Nuclear Engineering in June 1969, An MSc in microelectronic electron diffraction in April 1977 (Nuclear Department, Faculty of Engineering, Alexandria University); and a PhD in June 1983 (High Institute of Electronic and Optics, Paul Sabatier University, Toulouse, France). From 1970 to 1977, he was in the Egyptian marine force. He was a demonstrator until 1977, in 1977 he was teaching lectures and staff members and in 1993 he was a professor with the Department of Electronic and Electrical Communications, Faculty of Electronic Engineering, Menufiya University. In 1993, he became professor of microelectronic, VLSI design technology, communication systems, and computer networks. From 1993 until 1999, he was vice dean for education and student. In 2001, he became president of the Electrical Engineering Communication Department; and from 2001 until 2004, he was dean of the faculty of electronic engineering. He is a member of the Menufiya periodic electronic faculty journal and since 1995 have been the director, designer, and constructor of the Menufiya University wide-area network (WAN) (21-LANs). He is the developer of the Menufiya University libraries and FRCU universities libraries, His current research interests are electron and scan microscopy; transmission and backscattering of electrons and ion beams into amorphous or polycrystalline targets; optical fibers; VLSI design, nanotechnology, lithography; digital, optical, and multimedia communications; digital Images; multimedia and database communications; computer security (crypto-analyses); telemetry microcomputer applications in satellites; OBC (on Board computer Design) and satellite communications,  IT, Computer Network.

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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