The propagation of electromagnetic waves in a linear, dispersive Lorentz medium is calculated using finite-difference time-domain (FDTD) method; their time-frequency (TF) characteristics are studied using Gabor extension. Numerical results show that TF spectrum gives clear interpretation for transient evolution of ultra wide-band pulse propagation through Lorentz medium.
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Netherlands Def Acad, Fac Mil Sci, POB 10000, NL-1780CA Den Helder, Netherlands
Delft Univ Technol, Dept Mat Sci & Engn, Mekelweg 2, NL-2628CD Delft, NetherlandsNetherlands Def Acad, Fac Mil Sci, POB 10000, NL-1780CA Den Helder, Netherlands
Homborg, Axel
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Mol, Arjan
Tinga, Tiedo
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Netherlands Def Acad, Fac Mil Sci, POB 10000, NL-1780CA Den Helder, Netherlands
Univ Twente, Fac Engn Technol, POB 217, NL-7500AE Enschede, NetherlandsNetherlands Def Acad, Fac Mil Sci, POB 10000, NL-1780CA Den Helder, Netherlands