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Table 1.
System parameters used for the E2E simulation and the PSFR validation process.
| Telescope | 8 m | |
| Central obstruction | 14% | |
| Deformable mirror | DSM (deformable secondary mirror) 1100 actuators | |
| # of corrected modes | 490 | |
| LGS WFS | LGS focus alt | 90 km |
| Number of lenslets | 40 × 40 | |
| Pixel size | 0.5″ | |
| Frame rate | 1000 Hz | |
| Wavelength | 589 nm | |
| # of pixels per sub-ap | 6 × 6 | |
| Photons/sub-ap/frame | 500 ph | |
| ron | 0.1e− | |
| TT WFS | full pupil imager | |
| Number of pixels | 8 × 8 | |
| Frame rate | 1000 Hz | |
| Wavelength | H band | |
| Position | 120″ off-axis | |
| Magnitude | 15 | |
| ron | 10 e− | |
| Loop parameters | loop frequency | 1000 Hz |
| GLAO computation | ∑ of LGS signal (TT-removed) | |
| GLAO gain | 0.5 | |
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