<http://purl.org/dc/terms/description>
"Seismic transitions of the subsurface are typically considered as zero-order singularities\n(step functions). According to this model, the conventional deconvolution problem aims\nat recovering the seismic reflectivity as a sparse spike train. However, recent multiscale\nanalysis on sedimentary records revealed the existence of accumulations of varying order\nsingularities in the subsurface, which give rise to fractional-order discontinuities.\nThis observation not only calls for a richer class of seismic reflection waveforms, but it\nalso requires a different methodology to detect and characterize these reflection events.\nFor instance, the assumptions underlying conventional deconvolution no longer hold.\nBecause of the bandwidth limitation of seismic data, multiscale analysis methods based\non the decay rate of wavelet coefficients may yield ambiguous results. We avoid this\nproblem by formulating the estimation of the singularity orders by a parametric nonlinear\ninversion method."@en
<https://open.library.ubc.ca/cIRcle/collections/facultyresearchandpublications/340/items/1.0107405>