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- W2054392350 abstract "This paper presents a solution of 2D electromagnetic wave propagation problems in complicated terrestrial domains. Scalar 2D parabolic approximations are derived from Maxwell's equations for both vertical and horizontal polarization. The parabolic equations are then solved using a new technique involving Pade rational function approximations of the macroscopic operator. This method allows for larger-than-normal range stepping, speeding up computational time significantly. The Pade approximation and the numerical implementation are fully discussed. The discontinuity at the Earth's surface is handled directly by using classical continuity conditions and deriving exact interface conditions for linking the fields in the atmosphere to those in the terrain. The interface conditions are then implemented using the concept of virtual points. Preliminary benchmark tests show the interface treatment to work well. Finally, several example runs are presented illustrating results." @default.
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- W2054392350 date "1995-04-07" @default.
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- W2054392350 title "Scalar electromagnetic propagation modelling using parabolic equations and the split-step Pade approximation" @default.
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- W2054392350 doi "https://doi.org/10.1088/0305-4470/28/7/025" @default.
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