The Experts below are selected from a list of 13461 Experts worldwide ranked by ideXlab platform

Andrew Curtis - One of the best experts on this subject based on the ideXlab platform.

  • modeling of wave propagation in Inhomogeneous Media
    Physical Review Letters, 2005
    Co-Authors: Dirkjan Van Manen, Johan O A Robertsson, Andrew Curtis
    Abstract:

    We present a methodology providing a new perspective on modeling and inversion of wave propagation satisfying time-reversal invariance and reciprocity in generally Inhomogeneous Media. The approach relies on a representation theorem of the wave equation to express the Green function between points in the interior as an integral over the response in those points due to sources on a surface surrounding the medium. Following a predictable initial computational effort, Green's functions between arbitrary points in the medium can be computed as needed using a simple cross-correlation algorithm.

Harumi Isaka - One of the best experts on this subject based on the ideXlab platform.

  • Multiresolution Analysis of Radiative Transfer through Inhomogeneous Media. Part I: Theoretical Development
    Journal of the Atmospheric Sciences, 2006
    Co-Authors: Nicolas Ferlay, Harumi Isaka
    Abstract:

    This paper derives a multiresolution formulation of the radiative transfer equation for Inhomogeneous Media. The multiresolution equation is separated into two sets of equations that help in its physical interpretation. The first set represents radiative transfer at some approximation scale, the second at smaller scales. These equations describe explicitly how the local-scale couplings, which occur between the fluctuations of optical properties and radiation fields at different scales, contribute to the radiation field at a prescribed scale and at a given location by introducing additional internal sourcelike functions. These functions are expressed by terms involving connection coefficients of the chosen multiresolution system and also scaling and wavelet coefficients of the Inhomogeneous optical properties. This new formulation can provide new insights into the local-scale coupling governing radiative transfer in Inhomogeneous Media.

Dirkjan Van Manen - One of the best experts on this subject based on the ideXlab platform.

  • modeling of wave propagation in Inhomogeneous Media
    Physical Review Letters, 2005
    Co-Authors: Dirkjan Van Manen, Johan O A Robertsson, Andrew Curtis
    Abstract:

    We present a methodology providing a new perspective on modeling and inversion of wave propagation satisfying time-reversal invariance and reciprocity in generally Inhomogeneous Media. The approach relies on a representation theorem of the wave equation to express the Green function between points in the interior as an integral over the response in those points due to sources on a surface surrounding the medium. Following a predictable initial computational effort, Green's functions between arbitrary points in the medium can be computed as needed using a simple cross-correlation algorithm.

Nicolas Ferlay - One of the best experts on this subject based on the ideXlab platform.

  • Multiresolution Analysis of Radiative Transfer through Inhomogeneous Media. Part I: Theoretical Development
    Journal of the Atmospheric Sciences, 2006
    Co-Authors: Nicolas Ferlay, Harumi Isaka
    Abstract:

    This paper derives a multiresolution formulation of the radiative transfer equation for Inhomogeneous Media. The multiresolution equation is separated into two sets of equations that help in its physical interpretation. The first set represents radiative transfer at some approximation scale, the second at smaller scales. These equations describe explicitly how the local-scale couplings, which occur between the fluctuations of optical properties and radiation fields at different scales, contribute to the radiation field at a prescribed scale and at a given location by introducing additional internal sourcelike functions. These functions are expressed by terms involving connection coefficients of the chosen multiresolution system and also scaling and wavelet coefficients of the Inhomogeneous optical properties. This new formulation can provide new insights into the local-scale coupling governing radiative transfer in Inhomogeneous Media.

Johan O A Robertsson - One of the best experts on this subject based on the ideXlab platform.

  • modeling of wave propagation in Inhomogeneous Media
    Physical Review Letters, 2005
    Co-Authors: Dirkjan Van Manen, Johan O A Robertsson, Andrew Curtis
    Abstract:

    We present a methodology providing a new perspective on modeling and inversion of wave propagation satisfying time-reversal invariance and reciprocity in generally Inhomogeneous Media. The approach relies on a representation theorem of the wave equation to express the Green function between points in the interior as an integral over the response in those points due to sources on a surface surrounding the medium. Following a predictable initial computational effort, Green's functions between arbitrary points in the medium can be computed as needed using a simple cross-correlation algorithm.