Optical synthetic aperture translation error detection method based on imaging image linear projection

The invention discloses an imaging image linear projection-based optical synthetic aperture translation error detection method, which can be used for correcting translation errors in a synthetic aperture imaging system. According to the method, firstly, an imaging image of the synthetic aperture system is projected in the direction of each aperture, then, principal component analysis is performed on projection information to obtain an evaluation index corresponding to each sub-aperture, and finally, translation errors corresponding to the remaining sub-apertures are obtained through self-scanning of a reference aperture. According to the method, the translation error corresponding to each sub-aperture can be obtained by processing the imaging image and scanning the reference aperture once, large-range and high-precision error detection can be realized without additional optical element modulation, the method is not limited by the number of apertures, and the method has the advantages of compact light path, si