The invention discloses a
laser inter-
satellite link double-end receiving and transmitting
optical axis autonomous calibration method, and belongs to the technical field of
satellite laser communication. In this way, mutual transmission of energy of the double-end receiving
detector is carried out by means of
laser communication data frames of a laser inter-
satellite link, and the advance aiming mechanism is automatically adjusted through mutual cooperation of the two satellite laser terminals, so that automatic calibration of
signal receiving and transmitting optical axes of the two satellite laser terminals is achieved. Compared with traditional
optical axis calibration by means of a laser
ground station and
optical axis calibration by means of instruction sending of in-
orbit double satellites in a measurement and control arc section at the same time, efficiency is greatly improved, and all-weather, all-time and all-airspace receiving and transmitting optical axis calibration can be achieved. Compared with other methods for calibrating the transmitting and receiving coaxiality of a single satellite laser terminal by means of a calibration reflector (calibration) installed on a satellite, the method can calibrate the consistency of
signal transmitting and receiving optical axes of all rotation angles in the working stage of the laser terminal, and the calibration process does not affect normal work of links between laser satellites; and "ready-to-use calibration" is achieved.