Dependence of the Brillouin precursor form on the initial signal rise-time

• Autorzy: Ciarkowski A.
• Języki publikacji: EN

Abstrakty

EN

Propagation of a Brillouin precursor in a Lorentz dispersive medium is considered. The precursor is excited by a sine-modulated initial signal, with its envelope described by a hyperbolic tangent function. The purpose of the paper is to show how the rate of growth of the signal affects the form of the Brillouin precursor. Uniform asymptotic approach, pertinent to coalescing saddle points, is applied in the analysis. The results are illustrated with numerical examples.

Słowa kluczowe

EN

Lorentz medium; dispersive propagation; Brillouin precursor; uniform asymptotic expansions; electromagnetic wave propagation; numerical stability; signal processing; integration

PL

ośrodek Lorentza; propagacja dyspersyjna; prekursor Brillouina; propagacja fali elektromagnetycznej; stabilność numeryczna; przetwarzanie sygnałów; całkowanie

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Journal of Technical Physics
• Rocznik: 2003
• Tom: Vol. 44, no 2
• Strony: 181--192
• Opis fizyczny: Bibliogr. 12 poz., rys., wykr.

Twórcy

autor

Ciarkowski A.

• Institute of Fundamental Technological Research Polish Academy of Sciences Świętokrzyska 21, 00-049 Warsaw, Poland,

Bibliografia

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• 11. A. CIARKOWSKI, Approximate representation for the Brillouin precursor in a Lorentz medium, To appear in Electronics and Telecommunication Quarterly, 48, 487-498, 2002.
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