Intelligent Control Of Gyro Stabilized Sighting System For Airborne Optoelectronic Pod

With the development of the Precision Guided Weapon technique, airborne optoelectronic pod has become an important part of fighter precise attack system. It could isolate pointing axis from the vehicle oscillation. And it can search, localize and track targets with optoelectronic sensors. It is very important for the national defense construction of our country to develop airborne optoelectronic pod.This paper mainly focuses on the study of airborne optoelectronic pod and its mathematic model. The pod includes two axes servo systems, speed loop and position loop. The design of its controller is relatively challenging because the airborne optoelectronic pod is a system which has the great delay, nonlinearity and requirement of high-precision tracking. The design based on Fuzzy-PID control is proposed in this paper with the method PID controller in the speed loop and Fuzzy-PID controller in the position loop. The simulation by Matlab indicates that the system performance is improved effectively compared with traditional PID controller. Fuzzy-PID controller could shorten the transient process, reduce the overshoot and enhance the tracking accuracy. Fuzzy-PID helps system advance the ability to track the high-speed target, to improve the tracking accuracy androbustness of control system.Finally this paper discusses some common prediction methods, such as polynomial fitting Method, Kalman predictor, composed Kalman leap prediction, steady-state Kalman predictor to solve the problem of great delay.