Fig. 1. Principal component analysis results of standard wavefront

Fig. 2. (a) The amplitude and (b) phase calculated by the differential optical transfer function for the mixed wavefront of coma and astigmatism

Fig. 3. Energy distributions of the focal spot before (a) and after (b) aperture variation

Fig. 4. Differential optical transfer function solutions for a 2 m level large aperture mirror shape. (a) Original wavefront. (b) Recovered wavefront. (c) Original wavefront structure function. (d) Recovered wavefront structure function

Fig. 5. Cross correlation function between the original wavefront and restoration′s result

Fig. 6. Large aperture planar mirror discrete aperture detection architecture based on holographic Ritchey-Common detection. (a) Pupil architecture. (b) Detection optical path. (c) Aperture variational calculation process

Fig. 7. (a) Original wavefront and (b) reconstructed wavefront of low-order aberration combination

Fig. 8. Comparison of Zernike coefficients corresponding to the original wavefront and the reconstructed wavefront

Fig. 9. (a) The amplitude and (b) phase information obtained from the solution and (c) the implementation device