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Table 5 Positioning error comparison of the solutions based on different SSPs

From: Centimeter-level-precision seafloor geodetic positioning model with self-structured empirical sound speed profile

Index

Positioning errors of nearby Argo SSP in different directions (m)

Positioning errors of bilinear SSP in different directions (m)

Positioning errors of ESSP in different directions (m)

E

N

U

E

N

U

E

N

U

Accuracy mean bias

0.016

0.149

4.016

− 0.001

− 0.013

− 0.260

0.003

− 0.016

− 0.219

Accuracy STD

0.189

0.587

8.748

0.018

0.025

0.353

0.019

0.024

0.355

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