The portable antenna has advantages of flexible and convenient site usage and high setup efficiency,and the design of its servo control system is a critical part to ensure the accuracy of antenna tracking.In this paper,a fully digitalized control architecture servo system is designed.It has features such as one key pair of stars acquisition function,digital communication bus for signal and command transmission,and convenient and flexible configuration,which greatly improve the reliability of the system.Simultaneously,automatic calibration technology and main surface cone scanning technology are adopted to achieve high pointing accuracy and overcome the target drift problem.
One key pair of starsFully digitizedConical scanningAutomatic calibration