A Time-Domain Seismic Imaging Method with Sparse Pulsed-Beams Data

Ram Tuvi, Zeyu Zhao, Mrinal K. Sen

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

A novel time-domain (TD) migration method in inhomogeneous media is proposed. The formulation is based on the phase-space pulsed beam summation (PS-PBS) method. We use pulsed beams (PBs) to transform the acquired seismic data and backpropagate the PBs' data. The PBs' data are represented along a spatial, spectral, and temporal phase-space lattice. Under the Born approximation, the data are given as the local interaction between pairs of PBs and subsurface layers. This relation is denoted as a local Snell's law reflection from a localized region over the subsurface. Due to the spectral-temporal PBs' localization properties, only a few temporal data points correspond to each imaging point. The PBs' data provide an a priori sparse skeleton as the basis for the migration problem, which reduces the number of calculations needed to form images.

Original languageEnglish
JournalIEEE Transactions on Geoscience and Remote Sensing
Volume60
DOIs
StatePublished - 1 Jan 2022
Externally publishedYes

Keywords

  • Inverse theory
  • wave propagation
  • wavelet transform

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Earth and Planetary Sciences (all)

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