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. 2014 Mar 17;3:145. doi: 10.1186/2193-1801-3-145

Table 3.

Comparison of the TOPINV and SVD solutions with the reference values for case study 1

Reference coordinates (m) TOPINV ( k =0.25) SVD1 SVD2
Inline graphic ± σ Inline graphic Inline graphic
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

Biased estimates are shown bold. Values in meters.