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Abstract:

The propagation of a laser beam through turbulent media is modeled as a fractional Brownian motion (fBm). Time series corresponding to the center position of the laser spot (coordinates x and y) after traveling across air in turbulent motion, with different strength, are analyzed by the wavelet theory. Two quantifiers are calculated, the Hurst exponent, H, and the mean Normalized Total Wavelet Entropy, S̃WT. It is verified that both quantifiers give complementary information about the turbulence.

Registro:

Documento: Artículo
Título:Characterization of laser propagation through turbulent media by quantifiers based on the wavelet transform
Autor:Zunino, L.; Pérez, D.G.; Garavaglia, M.; Rosso, O.A.
Filiación:Departamento de Física, Facultad de Ciencias Exactas, Ctr. de Invest. Óptics, CC. 124 Correo Central, 1900 La Plata, Buenos Aires, Argentina
Instituto de Cálculo, Fac. de Ciencias Exactas y Naturales, Ciudad Universitaria, 1428 Ciudad de Buenas Aires, Argentina
Palabras clave:Fractional Brownian Motion; Hurst Exponent; Laser Propagation; Signal Entropy; Time-Frequency Signal Analysis; Turbulence; Wavelet Analysis; Characterization; Entropy; Fractals; Time series analysis; Turbulent flow; Wavelet transforms; Fractional brownian motion; Hurst exponent; Laser propagation; Signal entropy; Time-frquency signal analysis; Wavelet analysis; Lasers
Año:2004
Volumen:12
Número:2
Página de inicio:223
Página de fin:233
DOI: http://dx.doi.org/10.1142/S0218348X04002471
Título revista:Fractals
Título revista abreviado:Fractals
ISSN:0218348X
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0218348X_v12_n2_p223_Zunino

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Citas:

---------- APA ----------
Zunino, L., Pérez, D.G., Garavaglia, M. & Rosso, O.A. (2004) . Characterization of laser propagation through turbulent media by quantifiers based on the wavelet transform. Fractals, 12(2), 223-233.
http://dx.doi.org/10.1142/S0218348X04002471
---------- CHICAGO ----------
Zunino, L., Pérez, D.G., Garavaglia, M., Rosso, O.A. "Characterization of laser propagation through turbulent media by quantifiers based on the wavelet transform" . Fractals 12, no. 2 (2004) : 223-233.
http://dx.doi.org/10.1142/S0218348X04002471
---------- MLA ----------
Zunino, L., Pérez, D.G., Garavaglia, M., Rosso, O.A. "Characterization of laser propagation through turbulent media by quantifiers based on the wavelet transform" . Fractals, vol. 12, no. 2, 2004, pp. 223-233.
http://dx.doi.org/10.1142/S0218348X04002471
---------- VANCOUVER ----------
Zunino, L., Pérez, D.G., Garavaglia, M., Rosso, O.A. Characterization of laser propagation through turbulent media by quantifiers based on the wavelet transform. Fractals. 2004;12(2):223-233.
http://dx.doi.org/10.1142/S0218348X04002471