Table 2.
Probability of a zero-valued zone occurring in fomXY(u, v) depending on pixel selection method, error on quadrant finding, and PWFS pixels to DM actuators oversampling factor.
| Px selection | Quadrant center | |||
|---|---|---|---|---|
| Oversampling | method | error (px RMS) | ||
| 0.0 | 0.1 | 0.3 | ||
| naive (%) | 26.2 | 31.4 | 61.1 | |
| 1 px to | qref. (%) | 14.2 | 19.9 | 55.8 |
| 1 actu | opt. (%) | 4.1 | 11.5 | 51.4 |
| naive (%) | 9.6 | 14.5 | 43.0 | |
| 96 px to | qref. (%) | 4.9 | 7.5 | 36.2 |
| 80 actu | opt. (%) | 0.2 | 2.3 | 31.9 |
| naive (%) | 0.2 | 1.0 | 14.8 | |
| 96 px to | qref. (%) | 0.1 | 0.6 | 10.7 |
| 60 actu | opt. (%) | 0.0 | 0.0 | 8.6 |
Notes. Values are computed as Prob.(minu, v[fomXY(u, v)]< 0.01) for 10 000 random (xi, yi)i = A, B, C, D.
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