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# trunk/src/green/disan
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(XXX macro: "PageOutline")
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Directory src/green/disan
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=========================
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Navigation: [[Mainpage], [wiki:trunk], [wiki:branches], [wiki:tags], [wiki:vendor], [wiki:export], [wiki:admin], [wiki:docs|WikiStart]]
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Programs
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--------
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The directory [src/green/disan](../../../../tree/master/src/green/disan) contains several programs for dispersion analysis and wavefield transformation.
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- `greda`: dispersion analysis, wavefield transformation
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- `grereso`: resolution analysis for wavefield transformation
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- `gabor`: group traveltime analysis, Gabor matrix
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- `phadi`: classical dispersion analysis using Fourier phases only
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- `hivgabor`: calculate H/V from gabor output
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- `hivexpanco`: claculate H/V from Fourier Bessel coefficients
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## Programs
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The directory source:trunk/src/green/disan contains several programs for dispersion analysis.
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[[gabor.f|source:trunk/src/green/disan/gabor.f]]::
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Spectrogram analysis: Group traveltime
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[[greda.f|source:trunk/src/green/disan/greda.f]]::
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Fourier-Bessel transformation
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[[grereso.f|source:trunk/src/green/disan/grereso.f]]::
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Resolution analysis for Fourier-Bessel transformation
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[[hivexpanco.f|source:trunk/src/green/disan/hivexpanco.f]]::
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Calculate H/V for Fourier Bessel expansion coefficients
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[[hivgabor.f|source:trunk/src/green/disan/hivgabor.f]]::
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Calculate H/V from gabor results: Spectrogram spectral ratios
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[[phadi.f|source:trunk/src/green/disan/phadi.f]]::
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Calculate phase velocity dispersion
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Some of these programs were used in
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* Forbriger, T., 2003. Inversion of shallow-seismic wavefields: I. Wavefield transformation. Geophys. J. Int., 153, 719-734.(XXX macro: "BR")
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* Forbriger, T., 2003. Inversion of shallow-seismic wavefields: II. Inferring subsurface properties from wavefield transforms. Geophys. J. Int., 153, 735-752.(XXX macro: "BR")
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- Forbriger, T., 2003. Inversion of shallow-seismic wavefields: I. Wavefield transformation. Geophys. J. Int., 153, 719-734.
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- Forbriger, T., 2003. Inversion of shallow-seismic wavefields: II. Inferring subsurface properties from wavefield transforms. Geophys. J. Int., 153, 735-752.
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## Subpages
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[[TitleIndex(trunk/src/green/disan)]] |
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Subpages
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--------
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- [gabor.f](src_green_disan_gabor.f.md)
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- [greda.f](src_green_disan_greda.md)
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- [grereso.f](src_green_disan_grereso.f.md) |