Modeling High Frequency Propagation in Tunnel Environments by IterativePhysical Optics Method

  • Authors:

  • M. G. Araújo;F. Obelleiro;J. L. Rodríguez

  • Affiliations:

  • Departamento de Tecnoloxías das Comunicacións, E.T.S.E. Telecomunicacións, Universidade de Vigo, Campus Universitario S/N, 36200 Vigo, Pontevedra, Spain E-mail: obi@tsc.uvig ...;Departamento de Tecnoloxías das Comunicacións, E.T.S.E. Telecomunicacións, Universidade de Vigo, Campus Universitario S/N, 36200 Vigo, Pontevedra, Spain E-mail: obi@tsc.uvig ...;Departamento de Tecnoloxías das Comunicacións, E.T.S.E. Telecomunicacións, Universidade de Vigo, Campus Universitario S/N, 36200 Vigo, Pontevedra, Spain E-mail: obi@tsc.uvig ...

  • Venue:
  • Wireless Personal Communications: An International Journal
  • Year:
  • 2002

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Abstract

A new formulation of the Iterative PhysicalOptics (IPO) method, including waveguide wall loss effects, hasbeen developed to model high frequency electromagnetic wavepropagation in tunnel environments. The lossy behavior of thetunnel walls has been considered throughout the inclusion of theImpedance Boundary Condition (IBC) model in the formulation of theIPO. Different arched tunnels have been studied, showing that thisapproach has a convergent behavior and providing accurate resultsfor realistic tunnel models. Moreover, the computational costassociated with the analysis of long tunnels has been significantlyreduced by using a connection scheme which splits the tunnel into aset of short sections that can be more easily analyzed. Someresults are shown, illustrating the capability of the proposedmethod.