Fig. 1. Calculating process of astigmatism dOTF

Fig. 2. Initial error of wavefront unwrapping with different amplitudes

Fig. 3. Unwrapping error of different iteration times

Fig. 4. Calculating process of multiple Zernike dOTF

Fig. 5. Phase Unwrapping of CCD noise

Fig. 6. Phase unwrapping of R0=0.02 m atmospheric perturbation

Fig. 7. Figures of dOTF experiment installing

Fig. 8. Results of amplitude and phase distribution

Fig. 9. Phase and Zernike coefficient distribution of unwrapping