Optimum Loss Factor for a Perfectly Matched Layer in Finite-Difference Time-Domain Acoustic Simulation

A perfectly matched layer (PML) is commonly used in finite-difference time-domain (FDTD) simulation to absorb outgoing waves and thereby reduce artifactual reflections from the computational domain boundaries. However, previous two-dimensional studies have noted that increasing the PML loss factor d...

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Veröffentlicht in:	IEEE transactions on audio, speech, and language processing speech, and language processing, 2010-07, Vol.18 (5), p.1068-1071
Hauptverfasser:	Mokhtari, Parham, Takemoto, Hironori, Nishimura, Ryouichi, Kato, Hiroaki
Format:	Artikel
Sprache:	eng
Schlagworte:	Acoustic reflection Acoustic simulation Acoustic waves Computational modeling Computer simulation Degradation Estimating Finite difference method Finite difference methods Finite difference time domain method finite-difference time-domain (FDTD) Mathematical analysis Optimization perfectly matched layer (PML) Perfectly matched layers Performance loss Signal resolution Time domain analysis
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