Method and device for calibrating true north corner

The invention provides a true north angle calibration method and device. The method comprises the following steps: acquiring space coordinates of ground equipment and a calibration source; determining a first angle of the ground equipment in a geodetic coordinate system based on the space coordinates; wherein the first angle comprises a course angle and a pitch angle; determining a second angle of the ground equipment under the rotary table coordinate system based on a preset calibration scheme; and based on the first angle and the second angle, determining a calibration relationship of the true north corner. According to the scheme, rapid conversion between the rotary table coordinate system and the geodetic coordinate system can be realized, so that the measurement speed and the measurement accuracy of the ground active calibration equipment are improved. 本发明提供了一种真北角的标定方法及装置，其中方法包括：获取地面设备和校准源的空间坐标；基于所述空间坐标，确定大地坐标系下所述地面设备的第一角度；其中，所述第一角度包括航向角和俯仰角；基于预设的校准方案，确定转台坐标系下所述地面设备的第二角度；基于所述第一角度和所述第二角度，确定真北角的标定关系。本方案，能够