Optical axis jitter measurement method for space optical camera and device

The present invention discloses an optical axis jitter measurement method for a space optical camera and a device. The method comprise the steps of measuring the pointing angle of each sampling time of an inertial measurement unit coordinate system Z axis in an integral time section about an inertial space coordinate system x axis, the pointing angle about an inertial space coordinate system y axis and the pointing angle about an inertial space coordinate system z axis, measuring the light spot information of the first and second reference laser beams which enter into the space optical camera in each sampling time and determining the pointing information of a space optical camera optical axis about the x axis, the y axis and the z axis of the inertial space coordinate system in each time according to the light spot information and the three pointing angles, and calculating the jitter of the space optical camera optical axis according to the pointing information of the space optical camera optical axis about the x axis, the y axis and the z axis of the inertial space coordinate system in each time. According to the technical scheme provided by the invention, the sharpness of a remote sensing image can be effectively improved.