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Fig. 3 | Earth, Planets and Space

Fig. 3

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

Fig. 3

Schematic diagram of multipaths of acoustic waves. Multiples reflected at the surface and inside of the glass sphere and the seafloor may be recorded by the seafloor transponder. Observed time lag of 0.4–0.8 ms between first and secondary envelopes (Figs. 1e–j, 2b) assumes that the secondary envelope would be the multipath reflected at the glass sphere

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