System parameters of electromechanically follow-up control;

Based on the mathematical model of the brushless dc motor, the simulation of brushless dc motor system by Simulink is proposed, and two methods of current tracking control are researched.

To enhance the performance of current tracking control to the reversible PWM converter,a new current control method is put forward which realizes current tracking control with the vector of the differential of current error.

Three kinds of current tracking control methods and one kind voltage tracking controlmethod are introduced.

H_∞ fuzzy tracking control of a class of uncertain nonlinear systems with time-varying delay;

Observer-based optimal tracking control for linear systems with control delay;

Adaptive tracking control for a class of chaotic systems with uncertain time-varying parameters;

Sliding mode track controller based on T-S fuzzy model is designed.

Information fusion algorithm proposed was applied to track control of ceramic manipulator and achieved the desired effectives.

In this paper,we discuss the key techniques of camera electromechanical tracking,camera calibration and alignment,virtual scene rendering,system synchronization and composition in Virtual Studio based on electromechanical tracking.