PML and MUR 'ABC' time-domain analysis in PSTD algorithm

PML and MUR 'ABC' time-domain analysis in PSTD algorithm

The pseudospectral time-domain (PSTD) method is a new way for solving Maxwell's equation. It's based on the FFT (fast Fourier transform), since it utilizes the PWS expansion to represent the spatial derivatives. Meanwhile, the periodicity of the FFT produces so called "wraparound effe...

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Bibliographische Detailangaben
Hauptverfasser: Liu Chao, Gao Benqing
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Algorithm design and analysis
Chaos
Electromagnetic propagation
Electromagnetic transients
Extraterrestrial phenomena
Finite difference methods
Frequency
Maxwell equations
Reflection
Time domain analysis
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Beschreibung
Zusammenfassung:The pseudospectral time-domain (PSTD) method is a new way for solving Maxwell's equation. It's based on the FFT (fast Fourier transform), since it utilizes the PWS expansion to represent the spatial derivatives. Meanwhile, the periodicity of the FFT produces so called "wraparound effects"-a major limitation of its application. The article shows the feasibility of this algorithm by numerical examples, and presents two methods (PML and MUR ABC) for overcoming the problem, giving a comparison of both methods in one dimension.
DOI:10.1109/ICCEA.1999.825065