Abstract
The application of the guided missile seeker is to provide stability to the sensor's line of sight toward a target by isolating it from the missile motion and vibration. The main objective of this paper is not only to present the physical modeling of two axes gimbal system but also to improve its performance through using fuzzy logic controlling approach. The paper is started by deriving the mathematical model for gimbals motion using Newton's second law, followed by designing the mechanical parts of model using SOLIDWORKS and converted to xml file to connect dc motors and sensors using MATLAB/SimMechanics. Then, a Mamdani-type fuzzy and a Proportional-Integral-Derivative (PID) controllers were designed using MATLAB software. The performance of both controllers was evaluated and tested for different types of input shapes. The simulation results showed that self-tuning fuzzy controller provides better performance, since no overshoot, small steady-state error and small settling time compared to PID controller.
Highlights
Weapon history has evolved in tandem with human history
There are many sources of noise and disturbances, which come from vibrations of the seeker and maneuvering of the missile while flighting, there is a decoupling in the line of sight (LOS) between the seeker and the object
It is realized that the seeker consists of a two-axis gimbal platform to track stably and make a stabilization loop [1]
Summary
Weapon history has evolved in tandem with human history. Recent weapon systems are evolving to cause the least amount of human harm and to neutralize military facilities. The primary goal of a missile is too accurately to shoot the moving and fixed targets. It has been steadily producing missiles that use different seeker technologies. The seeker system’s function is to actively track up to the target by detecting and locking on to the object. In this system, there are many sources of noise and disturbances, which come from vibrations of the seeker and maneuvering of the missile while flighting, there is a decoupling in the line of sight (LOS) between the seeker and the object. It is realized that the seeker consists of a two-axis gimbal platform to track stably and make a stabilization loop [1]
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