Search for dissertations about: "High Frequency Wave Scattering Problems"
Showing result 1 - 5 of 8 swedish dissertations containing the words High Frequency Wave Scattering Problems.
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1. High frequency scattering and spectral methods
Abstract : This thesis consists of five parts. The first part is an introduction with references to some recent work on 2D electromagnetic scattering problems at high frequencies. It also presents the basic integral equation types for impenetrable objects and the standard elements of the method of moments. READ MORE
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2. Fast Adaptive Numerical Methods for High Frequency Waves and Interface Tracking
Abstract : The main focus of this thesis is on fast numerical methods, where adaptivity is an important mechanism to lowering the methods' complexity. The application of the methods are in the areas of wireless communication, antenna design, radar signature computation, noise prediction, medical ultrasonography, crystal growth, flame propagation, wave propagation, seismology, geometrical optics and image processing. READ MORE
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3. Phase space methods for computing creeping rays
Abstract : This thesis concerns the numerical simulation of creeping rays and their contribution to high frequency scattering problems. Creeping rays are a type of diffracted rays which are generated at the shadow line of the scatterer and propagate along geodesic paths on the scatterer surface. READ MORE
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4. Perfectly matched layers for second order wave equations
Abstract : Numerical simulation of propagating waves in unbounded spatial domains is a challenge common to many branches of engineering and applied mathematics. Perfectly matched layers (PML) are a novel technique for simulating the absorption of waves in open domains. READ MORE
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5. Topics in Analysis and Computation of Linear Wave Propagation
Abstract : This thesis concerns the analysis and numerical simulation of wave propagation problems described by systems of linear hyperbolic partial differential equations. A major challenge in wave propagation problems is numerical simulation of high frequency waves. READ MORE