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x (m)

There’s a step missing between the f-k transform and getting f-velocity. Note that this is velocity and not wavenumber ; the two are related by v=f/k. Xia et al., 2004 (An example of the application of f-k –this case if for surface waves, w hich show dispersion: (i.e., v(f)).

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x (m)

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  1. There’s a step missing between the f-k transform and getting f-velocity. Note that this is velocity and not wavenumber ; the two are related by v=f/k Xia et al., 2004 (An example of the application of f-k –this case if for surface waves, which show dispersion: (i.e., v(f))

  2. Qualitative relation between data (left) and f-k transform (right) f (1/s) x (m) Two-way traveltime (s) k (wavenumber - 1/m) p=0 1000m/s V=f/k (m/s) 1000m/s 120m/s Assume: Signals are linear Signals are very broad-band 120m/s 100 Hz

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