Research Article
Accurate Solution of Navigation Equations in GPS Receivers for Very High Velocities Using Pseudorange Measurements
Table 1
The RMS error
m
of positioning for eight methods.
| |
Scenarios | Methods | | WLS | WLS + sigma | WLS + sigma | WLS + sigma exp | WLS + sigma | WLS + sigma | WLS + sigma tan | WLS + sigma SNR |
| | Air | 14.777 | 8.453 | 14.259 | 8.420 | 11.039 | 10.688 | 10.438 | 12.867 | | Circular 1 | 12.293 | 8.399 | 11.788 | 6.720 | 9.965 | 8.928 | 7.616 | 9.974 | | Circular 2 | 12.288 | 8.399 | 11.786 | 6.720 | 9.964 | 8.927 | 7.616 | 9.973 | | Circular 3 | 12.080 | 8.397 | 11.792 | 6.720 | 9.966 | 8.928 | 7.616 | 9.976 | | Rectangular | 25.267 | 10.053 | 24.734 | 9.273 | 16.564 | 14.976 | 13.134 | 21.834 | | Space | 8.798 | 3.528 | 9.144 | 2.868 | 4.701 | 4.231 | 3.633 | 7.260 |
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