Free Access
Fig. 2

Illustrative sketch of a reference cross-covariance C0 and the corresponding weight functions for the amplitude, WA, and for the travel time, Wτ, as well as the window function, w. The scaling is arbitrary as the different quantities have different units.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.