Table 3 Comparison of the TOPINV and SVD solutions with the reference values for case study 1
From: Solution of underdetermined systems of equations with gridded a priori constraints
Reference coordinates (m) | TOPINV ( k=0.25) | SVD1 | SVD2 | ||
|---|---|---|---|---|---|
| ± σ |
|
| ||
y 2 | 100.000 | 100.003 | 0.001 | 100.003 | 100.003 |
x 3 | 200.000 | 199.998 | 0.028 | 49.998 | 199.970 |
y 3 | 200.000 | 200.002 | 0.001 | 200.010 | 200.001 |
x 4 | 100.000 | 100.002 | 0.028 | -49.998 | 99.974 |