| 摘要 |
<p>For attenuating source-generated surface wavetrains in a set of seismic data traces, the traces are Fourier transformed (10) with respect to time to determine the frequency components of the surface wavetrain. A phase matching operation (14) is then performed using estimates (12) of the wavenumbers for each of the frequency components to approximately align the surface wavetrain in the seismic data traces. Next, a spatial low-pass filter is used (16) to remove the approximately aligned surface wavetrain. Finally, the phase matching is removed (18) and an inverse Fourier transformation is performed (20) to return the seismic data traces to the time domain. <IMAGE></p> |
