The friction torque and motor ripple torque are main factors that influence the position tracking accuracy of high precise servo turntable control system.

Backstepping position tracking control for permanent magnetic synchronous motor servo system;

Neuron adaptive PID control for position tracking control of automatic clutch;

This paper provides a position tracking system with distributed computers for dynamic target real-time monitoring of personnel and mobile equipment in coalmines underground.

Otherwise, it can improve the closed-loop bandwidth and the stability with tracking precision.

Experimental results show that the friction of pneumatic proportional system is smoothed with the effect of dither signal,the crawl of the system disappears,the hysteresis time is shortened,and the system trajectory tracking precision is.

The integrated testing system of electro-optical tracker aims at the integrated testing problem of tracking precision, tracking velocity, tracking acceleration etc.

We now apply fuzzy sets to making both tracking accuracy and convergence rate acceptable for such targets.

In order to enhance the tracking accuracy of satellite antenna,the installation error of antenna should be as small as possible.

In accordance with the particularity of spaceborne environment and design demand of tracking system, tracking accuracy of tracking servo system is analysed quantificationally,and correlative parameter and dynamic performance index of system are analysed qualitatively and expatiated.