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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Author
Díaz Lucas, Silvia; Jáuregui Misas, César; López Amo, Manuel; López Higuera, José Miguel
Date
2004-06-09
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.

Palabras clave
Multiplexing and sensor network techniques
FFT transform
MUSIC
Optical fiber sensors
Derechos
© 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
Publisher
SPIE Society of Photo-Optical Instrumentation Engineers
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