Now showing items 385-387 of 456

    • One-Way Wave Propagators For Velocity Analysis On Curvilinear Coordinates 

      Budkick, Scott; van der Hilst, Robert D.; de Hoop, Maarten V. (Massachusetts Institute of Technology. Earth Resources Laboratory, 2008)
      Due to present computational limitations, migration by the one-way wave equation remains an integral tool in seismic exploration. For the realistic interpretation of common image point gathers, it is necessary that migration ...
    • Effects of Surface Scattering in Waveform Inversion 

      Bleibinhaus, Florian; Rondenay, Stephane (Massachusetts Institute of Technology. Earth Resources Laboratory, 2008)
      In full waveform inversion of seismic body waves, the free surface is often ignored on grounds of computational efficiency. We investigate the effect of this simplification for highly irregular topography by means of a ...
    • Wave-Equation Reflection Tomography: Annihilators and Sensitivity Kernals 

      van der Hilst, Robert D.; de Hoop, Maarten V.; Shen, Peng (Massachusetts Institute of Technology. Earth Resources Laboratory, 2007)
      In seismic tomography, the finite frequency content of broad-band data leads to interference effects in the process of medium reconstruction, which are ignored in traditional ray theoretical implementations. Various ways ...