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In this paper we present an accurate physical model of discretization error in a 1-D perfectly matched layer (PML) using the finite-difference time-domain method. The model is based on the concept of the discrete wave impedance of the PML. This concept implies that the wave impedance in the discretized space changes, with respect to the continuous value, when absorption occurs. These changes depend...
This work presents an accurate physical model of discretization error in one-dimensional perfectly matched layer (PML) using finite difference time domain (FDTD) method. The proposed model is based on the concept of the effective wave impedance of the PML. This concept implies that the wave impedance in the discretized space changes, with respect to the continuous value, when absorption occurs. These...
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