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- W2288642000 abstract "The solution of a wide-angle parabolic wave equation solution using shift-map and finite-difference techniques is presented. The so-called Claerbout equation allows propagation angles up to 450 from the paraxial direction. The shift-map technique can be incorporated into this scheme allowing a varying terrain to be considered. The Claerbout one-order solution with respect to the terrain slope performs well for slopes up to about 15 and discontinuous slope changes up to about 30 and corresponds to the well-known split-step solution. The Claerbout second-order approximation is able to give better results than the split-step solution. Besides, under the condition of the phase error is less than 0.002, the acceptable propagation angle limits of the Claerbout and Greene are 360 and 470 respectively. This paper derives Greene second-order solution. To a certain extent, the Greene approximation can certainly give better results." @default.
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- W2288642000 date "2015-12-01" @default.
- W2288642000 modified "2023-09-22" @default.
- W2288642000 title "Greene second-order approximation of the wide-angle equation for terrain" @default.
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- W2288642000 doi "https://doi.org/10.1109/apmc.2015.7413341" @default.
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