The Radon transform (RT) or r-p transform is a useful tool for the inversion, the filtering and the modeling of seismicudprofiles where it respectively represents a first, intermediate or last step in the signal processing . When applied to seismicudsignais, the main interest of the RT lies in the physical meaning of this intégral transform which yields a plane waveuddécomposition of the observed wavefield . In the resulting T-p coordinates, the seismic data are displayed in a compact formudwhich facilitates their analysis . In addition, r -p mapping offers important theoretical advantages in the case of horizontallyudstratified media . Wide angle reflections and refracted arrivals can then be inverted together to dérive the velocity-depthudfunction. Reversibility of the RT enables filtering of well defined events in the T-p domain, but also allows computation ofudsynthetic seismograms from the thèoretical seismic response obtained in the T-P plane . Utilization of the RT has becomeudtoday an important, if not essential, step in the processing and inversion of good quality, large aperture, seismic data .udThis paper ondines the practical aspects of the T-p transform of a seismic section as well as some methods of interpretationudwhich rely on inversion, filtering or modeling in the T-p domain.
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