RECENT PUBLICATIONS

• Rongfeng Zhang, Daniel Trad and Tadeusz J. Ulrych Hybrid, Wavelet Transform Based, Noise Attenuation. Integrated Computer-Aided Engineering (in press)
  

• J. Kim Welford and Rongfeng Zhang, 2004, Ground roll suppression from deep crustal seismic reflection data using a wavelet-based approach: a case study from western Canada. Geophysics, 69, 877-884
  

• Kristopher A. Innanen, 2003, Local Signal Regularity and Lipschitz Exponents as a Means to Estimate Q, Journal of Seismic Exploration, 12, 53-74.
  

• Kristopher A. Innanen and Arthur B. Weglein, 2003, Construction of absorptive/dispersive wave fields with the forward scattering series. Journal of Seismic Exploration, 12, 259-282
  

• Daniel Trad, 2003, Interpolation and multiple attenuation with migration operators Geophysics, 68, 2043-2054.
  

• Daniel Trad, Tadeusz J. Ulrych and M.D. Sacchi, 2003, Latest views of the sparse Radon transform Geophysics, 68, 386-399
  

• Rongfeng Zhang and Tadeusz J. Ulrych, 2003, Physical wavelet frame denoising. Geophysics, 68, 225-231
  

• Song, S. G. and Innanen, K. A., 2002, Multiresolution Modeling and Wavefield Reconstruction in Seismology. Geophysics, 67, 1192-1201
  

• Tadeusz J. Ulrych, 2002, Blind Deconvolution via Independent Component Analysis.
  download pdf (254 Kb)

• Sam T. Kaplan and Tadeusz J. Ulrych, 2001-2002, From eigenfaces to eigensections. Journal of Seismic Exploration, 10, 353-366
  download postscript (1.5 Mb)

• Daniel Trad, M.D. Sacchi and Tadeusz J. Ulrych, 2001, A hybrid linear-hyperbolic Radon transform. Journal of Seismic Exploration, 9(4), 303-318

• D.R. Velis and T.J. Ulrych, 2001, Simulated annealing ray tracing in complex three-dimensional meadia. Geophys. J. International, 145(2), 447-459.

• B. Cagnoli and T.J. Ulrych, 2001, Singular value decomposition and wavy reflections in ground penetrating radar images of base surge deposits. J. Applied Geophysics, 48, 175-182.

• Ulrych, T.J., Sacchi, M.D. and Woodbury, A.D., 2000, A Bayes tour of inversion: a tutorial. Geophysics, 66, No. 1, 55-69

• Woodbury, A.D., and Ulrych, T.J., 2000, A full-Baysian approach to the groundwater inverse problem for steady state flow. Water Resources Research, 36(8), 2081-2093.

• Sacchi, M.D. and Ulrych, T.J., 2000, Non minimum-phase wavelet estimation using higher order statisctics. The Leading Edge, 19, No. 1, 80-83.

• Song, S., Zhang, R., and Ulrych, T.J., 2000, High resolution wavefield reconstruction in seismic migration for viscoelastic media. Journal of Seismic Exploration, 9, No. 1, 1-18.

• Trad, D.O. and Travassos, J.M., 2000, Wavelet filtering of magnetotelluric data. Geophysics, 65, 482-491.

• Ulrych, T.J., Velis, D.R., Woodbury, A.D., and Sacchi, M.D., 2000, L-moments and C-moments. Stoch. Envir. Res. and Risk Assessment, 14, No. 1, 50-68.

• Li, X-G., and Ulrych, T.J., 1999, Well log analysis using localized transforms. J. Applied Seismology, 8, No. 3, 243-260.

• Ulrych, T.J., 1999, ``The whiteness hypothesis'': reflectivity, chaos, inversion and Enders. Geophysics, 64, 1512-1523.

• Ulrych, T.J., Sacchi, M.D., and Graul, M., 1999, Signal and noise separation: art and science. Geophysics, 64, 1648-1656.

• Sacchi, M.D., Ulrych, T.J, and Walker, C., 1998, Interpolation and extrapolation using a high resolution discrete Fourier transform: IEEE Trans. on Signal Processing, 46, No. 1, 31-38.

• Sacchi, M.D., Ulrych, T.J. and Velis D.R., 1998, Non minimum phase wavelet estimation using polycepstra. J. Seismic Exploration, 7, 159-173.

• Sacchi, M.D., and Ulrych, T.J., 1997, Recovery of near offsets using a f-x gap filling algorithm, Paper SP3.1 1096-1099, 67th Annual SEG meeting, Dallas, Texas, December 9-13.

• Song, S., Qu, C., and He, J., 1996, Imaging of velocity singularities with multiscale operators. J. Math Phys., 37, 719-731.

• Li, X.-G., Sacchi, M.D., and Ulrych, T.J., 1996, Wavelet Transform Inversion with a Priori Scale Information: Geophysics, 61, 5, 1379-1385.

• Sacchi, M.D., and Ulrych, T.J., 1996, Estimation of the discrete Fourier transform, a linear inversion approach: Geophysics., 61, 4, 1128-1136.

• Velis D.R. and Ulrych, T.J., 1996, Simulated annealing wavelet estimation via fourth-order cumulant matching. Geophysics, 61, No. 6, 1939-1948.

• Velis D.R. and Ulrych, T.J., 1996, Simulated annealing two-point ray tracing. Geophys. Res. Letters, 23,, No. 2., 201-204.

• Ulrych, T.J., Velis, D., and Sacchi M.D., 1995, Wavelet estimation: revisited: The Leading Edge, 14, 1139-1143.

• Sacchi, M.D., and Ulrych, T.J., 1995, Improving resolution of Radon operators using a model re-weighted least squares procedure: Journal of Seismic Exploration, 4, 315-328.