Dynamic Tracking Experimental Research of Adjusting System for the Subreflector of 65 Meters Radio Telescope

In order to improve the dynamic tracking ability of adjusting system for the subreflector of 65 meters radio telescope, and lay the foundation for the calibration works, PID parameters were adjusted through parabolic speed response and ramp position response based on electrical control system. Circle tracking test were carried out using laser tracker, the result demonstrate that the dynamic tracking ability of subreflector control system is improved and calibration can carry out. Keywords-65 meters radio telescope; subreflector; adjusting system; dynamic tracking; PID parameters