1. n. [Geophysics]

A process or algorithm using a set of limits used to eliminate unwanted portions of seismic data, commonly on the basis of frequency or amplitude, to enhance the signal-to-noise ratio of the data or to achieve deconvolution.

See related terms: alias filter,  aliasing,  aperture,  backscatter,  band,  band-pass,  band-reject,  coherence filtering,  deterministic deconvolution,  Fourier transform,  noise,  processing,  random noise,  signal,  signal-to-noise ratio,  Walsh-Hadamard transform

2. vb. [Geophysics]

To remove undesirable portions of data during seismic processing to increase the signal-to-noise ratio of seismic data. Filtering can eliminate certain frequencies, amplitudes, or other information.

See related terms: amplitude,  band,  frequency,  noise,  seismic processing,  signal-to-noise ratio