Mounting angle deviation calibration method for airborne photoelectric load

The invention relates to a mounting angle deviation calibration method for an airborne photoelectric load. The method comprises the following steps: selecting two reference points according to an expected relative position vector relationship; measuring the positions of the two reference points by adopting a platform navigation system, and determining the distance between the two reference points; designing two groups of tests with different effects for the platform loaded with the airborne photoelectric load according to the two reference points to obtain two groups of platform pose measurement values; resolving according to the two groups of platform pose measurement values to obtain a mounting pitch angle deviation, an azimuth angle deviation and a platform mounting roll-roll angle deviation; and according to the installation pitch angle deviation, the azimuth angle deviation and the platform installation roll-on and roll-off angle deviation, the actually measured sight line direction of the load in the ta