Fig. 1. Structural diagram of pyramid wavefront detector

Fig. 2. Influence function of DM

Fig. 3. Flow chart of adaptive optics system

Fig. 4. Structure and parameters of P-U-net network

Fig. 5. （a）Distribution of actuators for deformable mirrors；（b）Voltage array of deformable mirrors.

Fig. 6. Test results.（a）Surface shape of deformable mirror after applying predicted voltage；（b）Original wavefront；（c）Residual wavefront.

Fig. 7. Statistical results

Fig. 8. Results of iterations 1，25，50 and 100.（a1）~（d1）Pupil images of the pyramid wavefront detector；（a2）~（d2）Residual wavefront；（a3）~（d3）Point spread function.

Fig. 9. RMS value change curve during iteration

Fig. 10. Iteration time curve

Fig. 11. Comparative statistical results between traditional methods and P-U-net