Subreflector Feed Angle Calibration for Giant T&C antenna with two reflectors in maritime dynamic environment

Shipboard Giant T&C antenna with two reflectors can not complete angle calibration without calibration tower in maritime dynamic environment. To solve this problem, a new angle calibration method is proposed. It is Subreflector Feed Angle Calibration. Princinple, key technologies and process of calibration is studied and illuminated. Through experement analysis, validity of the new calibration method is proved.