الفهرس 
INTRODUCTION AND LITERATURE REVIEWOnly 14 pages are availabe for public view
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Abstract
With comes the demand that fighter pilots posses higher abilities in making the correct decision. Meanwhile, human error usually becomes a drawback to make correct and timely decision. Therefore, a control method is required to control trajectory of aircraft during combat maneuver.
The purpose of the present work is to control aircraft trajectory using fuzzy logic control. In the beginning, aircraft motion and the parameters influencing it are studied. The examination of th~ aircraft equation of motion and the model of F -16 aircraft are the way to get ~he actual data of the aircraft. An inverse fuzzy dynamic program developed from the model data helped studying both turning and pull-up motions. The application of different types of membership functions for input and output data of both turning and pull¬up motions led to get the optimized one, which gives minimum percentage error while tracking a certain trajectory. In addition, increasing the number of membership functions for both input and output data, improved fuzzy logic program tracking response and minimizes percentage error.
To study the behavior of fuzzy logic program at different types of motion for each turning and pull-up motions, some trajectories; such as linear, parabolic, and zigzag type; were applied. Applying a trajectory near the fuzzy logic margin led to the conclusion that the inverse fuzzy dynamic renders relatively large percentage error compared to region within the limits. In addition, tracking a linear path is more accurate than tracking curved one. If sudden change in direction occurs, the control variables suffer abrupt change and the error increases. It is recommended to perform smoother direction change, which matches the system delay.
Finally, building a fuzzy logic program is required, to control a defensive maneuver and to make aircraft trajectory runaway from object aircraft. The present work does not recommend fuzzy control application to a defensive turning maneuver only. The application of both turning and pull-up motions should be at the same time in order to perform efficient and reliable combat defense maneuver.