abstract:The term swell filter in high resolution seismics (reflection seismology) or sub bottom profiling refers to the static correction that restores the coherence of a high resolution seismic profile. The coherence of the image got lost because of the relative movement (a function of the wavelength of the signal and the swell) of the source and receiver during the recording.
A new approach named swellnoiseattenuation, which is based onspatialmedianfilterarithmetic, can be adopted to suppresssuch a noise with somelimitations.