Table 3.
Fastloc-GPS test results
| Parameter | Number of satellites | X-dimension | Y-dimension | ||
|---|---|---|---|---|---|
| Estimate | SE | Estimate | SE | ||
| μ F(m) | 4 | 0.57 | 0.56 | −1.06 | 0.76 |
| 5 | 0.21 | 0.38 | −0.41 | 0.49 | |
| 6 | 0.02 | 0.22 | 0.17 | 0.28 | |
| 7 | 0.01 | 0.16 | 0.10 | 0.20 | |
| 8 | −0.01 | 0.14 | 0.39 | 0.17 | |
| >8 | 0.08 | 0.09 | −0.01 | 0.11 | |
| σ F(m) | 4 | 24.51 | 0.68 | 34.07 | 0.03 |
| 5 | 19.11 | 0.42 | 25.37 | 0.04 | |
| 6 | 13.10 | 0.23 | 17.12 | 0.10 | |
| 7 | 10.69 | 0.16 | 14.23 | 0.19 | |
| 8 | 9.28 | 0.14 | 11.56 | 0.42 | |
| >8 | 7.77 | 0.10 | 9.35 | 0.65 | |
| υ F(−) | 4 | 0.93 | 0.90 | 1.08 | 0.03 |
| 5 | 1.44 | 0.55 | 1.64 | 0.05 | |
| 6 | 2.53 | 0.29 | 2.73 | 0.11 | |
| 7 | 3.91 | 0.21 | 5.32 | 0.34 | |
| 8 | 5.83 | 0.18 | 6.86 | 0.58 | |
| >8 | 8.17 | 0.12 | 7.72 | 0.61 | |
Scaled t distributions were fitted to the positional errors measured during the Fastloc-GPS accuracy tests. Maximum likelihood estimates and standard error (SEs) are provided for location μ F, scale σ F, and shape υ F for each spatial dimension and number of satellites used for the position calculation (#satellite bin)