Tracking and Disturbance Suppression of the Radio Telescope Servo System Based on the Equivalent-Input-Disturbance Approach

Table 1

Tracking and antidisturbance performance of the three methods.

Methods	Overshoot	Settling time	RMS	Maximum error
Our method	0	1.13	0.0039	0.0128
ADRC	1%	1.45	0.0091	0.0317
PI	23%	2	0.0127	0.0461