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Earth, Planets and Space
Fig. 5 | Earth, Planets and Space

Fig. 5

From: Development and examination of new algorithms of traveltime detection in GPS/acoustic geodetic data for precise and automated analysis

Fig. 5

Analysis process of the cluster analysis (CA). a Map view of ship track colored by group ID by cluster analysis (CA) method. b, c Scheme of TWT correction against slave correlograms. Correction value \(\Delta t\) reveals a traveltime difference between the maximum peak (dashed line) and the true peak (blue line) on the master correlogram (b). Traveltime of slaves are corrected by \(\Delta t\) after cross-correlating the master and slave correlograms (c). \(\Delta t\) = 0 if the true peak of the master correlogram the maximum amplitude

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