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Descripción
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| Massive optical sensor networks gained a lot of attention in recent years. They offer new advances in the fields of smart structures and health monitoring. All serial optical sensor networks rely on multiplexing techniques that provide huge amounts of sensors in a single optical fiber. Wavelength-division Multiplex (WDM) which has been established in many applications, is restricted to the spectral width of the used light source that needs to be shared by several non-overlapping Fiber-Bragg-Grating (FBG) spectra. Time-division Multiplex (TDM) uses short impulses and a different optical path length between all optical sensors, to distinguish each single FBG. Short impulses lead to a low Signal-to-Noise Ratio (SNR). Optical Frequency Domain Reflectometry (OFDR) offers a high spatial resolution of FBGs within a short fiber length. This contribution deals with a Code-division Multiplex (CDM) interrogation technique that provides numerous sensors in a single optical fiber, a better SNR, and a long range of distributed sensing points. It requires codes with good autocorrelation behavior which is characterized by certain criteria. The detectable criteria are limited which narrows significantly a search for best possible codes for the interrogation system. | |
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Internacional
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Si |
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Nombre congreso
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2019 International Interdisciplinary PhD Workshop (IIPhDW) |
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Tipo de participación
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960 |
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Lugar del congreso
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Wismar (Germany) |
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Revisores
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Si |
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ISBN o ISSN
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978-1-7281-0423-2 |
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DOI
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10.1109/IIPHDW.2019.8755427 |
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Fecha inicio congreso
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15/11/2019 |
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Fecha fin congreso
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17/11/2019 |
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Desde la página
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106 |
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Hasta la página
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109 |
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Título de las actas
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2019 International Interdisciplinary PhD Workshop (IIPhDW) |