Application of the fast Fourier transform and parametric frequency estimation for the measurement of the Bragg wavelength of interferometrically interrogated fiber Bragg grating sensors

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URI: http://hdl.handle.net/10902/2323
ISSN: 1996-756X
ISSN: 0277-786X
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Autoría
Díaz Lucas, Silvia; Jáuregui Misas, César; López Amo, Manuel; López Higuera, José MiguelAutoridad Unican
Fecha
2004-06-09
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© 2004 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Publicado en
Proceedings of SPIE, 2004, vol. 5502, 492-495
Second European Workshop on Optical Fibre Sensors, Santander, 2004
Editorial
SPIE Society of Photo-Optical Instrumentation Engineers
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Palabras clave
Multiplexing and sensor network techniques
FFT transform
MUSIC
Optical fiber sensors
Resumen/Abstract
A theoretical investigation on two techniques for the interrogation of fiber Bragg gratings (FBG) is reported. We compare two methods for decoding the Bragg wavelengths of gratings: the Fast Fourier Transform (FFT) processing and a parametric frequency estimation method called MUSIC. Results demonstrate that the second technique has advantages over the first one.
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