Application of an high-degree-mode dynamic control method to TV tracking system

In order to improve the tracking accuracy of TV tracking system, a control method that constitutes a high-degree-mode (mode-II) system by adding integral in smooth tracking period dynamically based on tracking error of the system and not removing integral in less error tracking period without changing intrinsic parameters of system is introduced. The experiments show that the maximal tracking error of the system is 170 arcsec when integral gain K= 2, and the maximal tracking error is 93 arcsec when integral gain K= 4.