Open Access
Table 1
Simulation parameters
| Telescopes | |
| Diameter | 8.0, 16.0 |
| Throughput | 100 % |
| Central obstruction | None |
| Natural guide star | |
| Zenith angle | 0° |
| Magnitudes | 5–16 |
| Zero point | 8.96 × 109 photons/s/m2 |
| Modulation | 4λ/D |
| Laser guide star | |
| Launch geometry | Side launch |
| Zenith angle | 0° |
| Magnitudes | 5–14 |
| Zero point | 8.96 × 109 photons/s/m2 |
| Number of samples | 10 000 |
| Sodium profile | TopHatPeak |
| Atmosphere | |
| r0 | 15 cm |
| L0 | 25 m |
| Layers | 1 |
| Altitudes | 0m |
| Wind speed | 0 m/s |
| WFS | |
| Order for 8 m telescope | 16 × 16 subapertures |
| Order for 16 m telescope | 32 × 32 subapertures |
| Frequency | 1 KHz |
| λsens | 589 nm |
| SHWFS specific parameters | |
| Pixel scale | 0.5 arcsec/pix |
| Subaperture FoV for | |
| 8 m telescope | 5 arcsec |
| Subaperture FoV for | |
| 16 m telescope | 10 arcsec |
| DM | |
| Order for 8 m telescope | 17 × 17 actuators |
| (200 KL modes) | |
| Order for 16 m telescope | 33 × 33 actuators |
| (700 KL modes) | |
| AO loop | |
| Delay | 2 frames |
| Gain | 0.3 |
| Science | |
| λsci | 589 nm |
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