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Comparison of positioning results by method.
| Positioning method | Positioning error/m |
Spatial error/m | ||
|---|---|---|---|---|
| X | Y | Z | ||
| Location of the epicenter | 8732.7 | 6570.6 | 511.3 | 0 |
| Least Squares | 8720.6 | 6579.7 | 526.4 | 21.50 |
| Simulated annealing - simplex method | 8730.6 | 6580.7 | 504.5 | 12.40 |
| Steady simulated annealing-simplex hybrid algorithm | 8730.5 | 6580.9 | 503.9 | 12.90 |
| Variable step size accelerated search | 8731.4 | 6576.5 | 506.8 | 7.53 |
| Global search and local optimization method | 8732.3 | 6574.6 | 513.7 | 4.69 |
