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Memorias de investigación
Ponencias en congresos:
Detection Limits of Optical Autocorrelations with a CDM Interrogator for Overlapping FBG Spectra
Año:2019
Áreas de investigación
  • Circuitos de instrumentación con sensores fotónicos,
  • Redes de sensores
Datos
Descripción
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.
Internacional
Si
Nombre congreso
2019 International Interdisciplinary PhD Workshop (IIPhDW)
Tipo de participación
960
Lugar del congreso
Wismar (Germany)
Revisores
Si
ISBN o ISSN
978-1-7281-0423-2
DOI
10.1109/IIPHDW.2019.8755427
Fecha inicio congreso
15/11/2019
Fecha fin congreso
17/11/2019
Desde la página
106
Hasta la página
109
Título de las actas
2019 International Interdisciplinary PhD Workshop (IIPhDW)
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Marek Götten (UPM)
  • Autor: Steffen Lochmann (Hochschule Wismar)
  • Autor: Andreas Ahrens (Hochschule Wismar)
  • Autor: Cesar Benavente Peces (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Departamento: Ingeniería Audiovisual y Comunicaciones
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