@article{fdi:010074348,
  title = {{D}ata-based diffraction kernels for surface waves from convolution and correlation processes through active seismic interferometry},
  author = {{C}hmiel, {M}. and {R}oux, {P}. and {H}errmann, {P}. and {R}ondeleux, {B}. and {W}athelet, {M}arc},
  editor = {},
  language = {{ENG}},
  abstract = {{W}e investigated the construction of diffraction kernels ({DK}s) for surface waves using two-point convolution and/or correlation from land active seismic data recorded in the context of exploration geophysics. {T}he high density of controlled sources and receivers, combined with the application of the reciprocity principle, allows us to retrieve 2-{D} phase-oscillation {DK}s of surface waves between any two source or receiver points in the medium at each frequency (up to 15 {H}z, at least). {T}hese {DK}s are purely data based as no model calculations and no synthetic data are needed. {T}hey naturally emerge from the interference patterns of the recorded wavefields projected on the dense array of sources and/or receivers. {T}he {DK}s are used to obtain multimode dispersion relations of {R}ayleigh waves, from which near-surface shear velocity can be extracted. {U}sing convolution versus correlation with a grid of active sources is an important step in understanding the physics of the retrieval of surface wave {G}reen's functions. {T}his provides the foundation for future studies based on noise sources or active sources with a sparse spatial distribution.},
  keywords = {{I}nterferometry ; {S}eismic tomography ; {S}urface waves and free oscillations ; {W}ave propagation},
  booktitle = {},
  journal = {{G}eophysical {J}ournal {I}nternational},
  volume = {214},
  numero = {2},
  pages = {1468--1480},
  ISSN = {0956-540{X}},
  year = {2018},
  DOI = {10.1093/gji/ggy211},
  URL = {https://www.documentation.ird.fr/hor/fdi:010074348},
}