A method and apparatus for correcting three-axis antenna pointing

The invention provides a method and a device for correcting the orientation of a three-axis antenna, and the method comprises the steps: obtaining an approximate value of an orientation angle set by an antenna under an equipment horizon system and an antenna guide angle under an equipment measurement system according to a target position, provided by orbit prediction, under the equipment horizon system through coordinate transformation; obtaining a corresponding pointing angle of the approximate value of the antenna guide angle under the equipment horizon system through correction calculation;and obtaining an accurate value of the antenna guiding angle set by the antenna under the equipment horizon system under the equipment measurement system through recursive calculation and by utilizing the corresponding pointing angle of the approximate value of the antenna guiding angle under the equipment horizon system. By utilizing the method, digital tracking or program tracking can be completed in real time and with