[ meld een fout in dit record ]mandje (0): toevoegen | toon Print deze pagina
Geoacoustic adjoint-based inversion via the parabolic equation
Papadakis, J.S.; Hermand, J.-P.; Flouri, E.T.; Meyer, M. (2008). Geoacoustic adjoint-based inversion via the parabolic equation. J. Acoust. Soc. Am. 123(5): 3511. dx.doi.org/10.1121/1.2934411
In: The Journal of the Acoustical Society of America. American Institute of Physics: New York. ISSN 0001-4966; e-ISSN 1520-8524, meer
Peer reviewed article  
Beschikbaar in  Auteurs 
Documenttype: Samenvatting
Auteurs  Top 
  • Papadakis, J.S.
  • Hermand, J.-P., meer
  • Flouri, E.T.
  • Meyer, M., meer
Abstract
    In this paper an analytic method is exhibited for recovering the acoustic parameters of the sub-bottom region in the ocean. The acoustic propagation problem is modeled via the wide angle parabolic equation and the bottom boundary condition used is in the form of a Neumann to Dirichlet or Dirichlet to Neumann map. The sub-bottom region is assumed homogeneous or horizontally stratified with homogeneous layers. The inversion is modeled as an optimal control problem, and the solution is based on the adjoint method. Several cost functions are introduced which make use of the relative amplitude of the observed complex field. The method is applied to several test cases and satisfactory convergence of the inversion scheme is exhibited.
Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid Top | Auteurs 
IMIS is ontwikkeld en wordt gehost door het VLIZ.