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Electromagnetics and Photonics

University of Massachusetts Amherst

Theses/Dissertations

2013

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Full-Text Articles in Engineering

Techniques To Increase Computational Efficiency In Some Deterministic And Random Electromagnetic Propagation Problems, Selman Ozbayat Sep 2013

Techniques To Increase Computational Efficiency In Some Deterministic And Random Electromagnetic Propagation Problems, Selman Ozbayat

Open Access Dissertations

Efficient computation in deterministic and uncertain electromagnetic propagation environments, tackled by parabolic equation methods, is the subject of interest of this dissertation. Our work is comprised of two parts. In the first part we determine efficient absorbing boundary conditions for propagation over deterministic terrain and in the second part we study techniques for efficient quantification of random parameters/outputs in volume and surface based electromagnetic problems.

Domain truncation by transparent boundary conditions for open problems where parabolic equation is utilized to govern wave propagation are in general computationally costly. For the deterministic problem, we utilize two approximations to a convolution-in-space type …