Navigation Service Performance Comparison for an Elevation Mask of 20°, with Lunar UERE σUERE,LNCSS = 3.86 m The columns of mean performance denote the mean RMSE across the array of grid points, whereas the columns of max performance denote the RMSE of the worst-case grid point, for each case study. See Section 3.2.3) for details on how the performance metrics and design criteria are computed.
| LNCSS Case Study (# sats) | Performance metrics: At worst user grid point averaged across time | Design criteria: Avg across user grid points | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Availability (%) | Failure Tolerance (%) | Coverage (%) | GDOP | Horizontal Position RMSE (m) | Vertical Position RMSE (m) | Receiver Timing RMSE (μs) | ||||
| Mean | Max | Mean | Max | Mean | Max | |||||
| A (8) | 77.51 | 54.11 | 53.29 | 246.24 | 14.75 | 4740.24 | 85.36 | 25620.85 | 0.19 | 56.94 |
| B (12) | 100 | 100 | 85.1 | 16.19 | 4.61 | 12.30 | 17.14 | 55.17 | 0.04 | 0.12 |
| C (16) | 100 | 100 | 100 | 7.24 | 4.12 | 7.04 | 14.06 | 29.88 | 0.03 | 0.07 |