Device, method and system for calibrating vertical angle of airborne hyperspectral imaging system

The invention relates to the technical field of hyperspectral imaging, and discloses a calibration device, method and system for the vertical angle of an airborne hyperspectral imaging system, and the device comprises a plumb system, an adjustment system, a collimation light source, and an imaging system. According to the invention, the calibrated vertically upward collimation light source is utilized to irradiate the airborne hyperspectral imaging system for high-angle shooting, and the light of the collimation light source is strong at the moment, so that obvious light spots can be formed on an image plane. According to the principle, the symmetry of the light spots relative to the central axis is highly related to the shooting angle of the hyperspectral imaging system and the collimation light angle. The more the light spots deviate from the central axis of the image plane, the larger the shooting angle and the collimation light angle of the hyperspectral imaging system are; when the light spots are symmet