A stochastic extension of the Uniform Theory of Diffraction accounting for geometrical uncertainty or surface and edge roughness
| Autor: | Matteo Albani, Federico Puggelli, G. Minatti, Giorgio Carluccio |
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| Rok vydání: | 2011 |
| Předmět: |
Electromagnetic field
Diffraction UTD ray based code conducting wedge edge roughness electric field electromagnetic field scattering geometrical uncertainty standard flat wedge statistical UTD formulation statistical moment statistical perturbation stochastic extension surface roughness uniform closed form expression uniform theory of diffraction codes electric fields electromagnetic wave scattering geometrical theory of diffraction stochastic processes Uniform theory of diffraction Surface finish Wedge (geometry) Electric field Surface roughness Physics Stochastic process Mathematical analysis Classical mechanics |
| Popis: | We present a stochastic extension of the Uniform Theory of Diffraction (UTD) which is capable to account for some uncertainty in the objects position or geometry, including roughness of surfaces or edges. Namely, we derive a solution for the electromagnetic field scattered by a perfectly conducting wedge whose faces are described as a statistical perturbation of a standard flat wedge. We give a uniform closed form expressions for the evaluation of the main statistical moments of the total electric field. The proposed statistical UTD formulation is suitable for engineering applications which involve UTD ray based codes. Some numerical examples highlight the accuracy and the effectiveness of the proposed ray description. |
| Databáze: | OpenAIRE |
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