We present common receiver sections obtained with the following parameters:
For the selected component (hydrophone or geophone X, Y, Z), the figure shows from left to right:
We will notice the very strong aliasing of the guided wave. This phenomenon is clearly visible on the f-k plot. As for the dominant wave, flattening data by applying a velocity correction compensates the aliasing phenomenon. We can notice that the energy associated to the guided wave is not centred on the null wave number in plan "frequency-number of wave". This points out that the guided wave is dispersive.