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Earth, Planets and Space
Fig. 3 | Earth, Planets and Space

Fig. 3

From: An approximate travel time calculation and a robust GNSS-acoustic positioning method using an MCMC technique

Fig. 3

Travel-time residuals for various travel-time approximation models. Red dots show travel time residuals for Model-1 (without height correction terms), and blue dots show those for Model-2 (with height correction terms). Each panel shows the travel time residuals for the two models with Ith degrees of polynomial functions. a I = 1, b I = 2, c I = 3, d I = 4, e I = 5, f I = 6, g I = 7, h I = 8

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