Matches in SemOpenAlex for { <https://semopenalex.org/work/W4366157473> ?p ?o ?g. }
Showing items 1 to 76 of
76
with 100 items per page.
- W4366157473 abstract "Phase-Sensitive Optical Time Domain Reflectometry (Φ-OTDR) is the most common implementation of a Distributed Acoustic Sensing (DAS) system and employs the observation of speckles resulting from Rayleigh Backscattering from coherent pulses in an optical fiber. Since they are sensitive to local disturbances altering the intensity and phase of light, perturbations induced by events cause changes in the speckle pattern whose precise measurement gives information on the amplitude and frequency of vibrations distributed along the fiber. Demodulation of the local phase change is key to the precise measurement of events since it is more linearly related to the strain applied to the fiber. One of the key issues in distributed sensing is that phase demodulation schemes usually require additional post-processing algorithm runs for each spatial location, which introduces delays, and hence reductions in dynamic sensing capability when scaled along the whole sensing distance. In this contribution, we analyze the impact of the post-processing in different phase demodulation techniques employing Phase-Generated Carrier (PGC) on the bandwidth of distributed feature extraction in a typical DAS system by quantifying the total computation time needed for a benchmark, 10-km sensing range at meter-scale spatial resolutions. We then design, implement, and analyze a signal processing scheme for phase extraction in Φ-OTDR enabling real-time dynamic measurements based on a Fast Hilbert Transform (FHT). Particular focus is given to the choice of this demodulation scheme for optimized bandwidth of distributed feature extraction using parallel processing of adjacent blocks in such a way that the overall throughput of spatially resolved concurrent demodulation allows dynamic vibration sensing at speeds relevant to most structural health monitoring applications." @default.
- W4366157473 created "2023-04-19" @default.
- W4366157473 creator A5009410404 @default.
- W4366157473 creator A5042366911 @default.
- W4366157473 creator A5084200887 @default.
- W4366157473 date "2023-05-22" @default.
- W4366157473 modified "2023-10-16" @default.
- W4366157473 title "An advanced signal processing scheme for real-time feature extraction in a distributed acoustic sensor based on phase demodulation with fast Hilbert transform" @default.
- W4366157473 doi "https://doi.org/10.1117/12.2644956" @default.
- W4366157473 hasPublicationYear "2023" @default.
- W4366157473 type Work @default.
- W4366157473 citedByCount "0" @default.
- W4366157473 crossrefType "proceedings-article" @default.
- W4366157473 hasAuthorship W4366157473A5009410404 @default.
- W4366157473 hasAuthorship W4366157473A5042366911 @default.
- W4366157473 hasAuthorship W4366157473A5084200887 @default.
- W4366157473 hasConcept C102290492 @default.
- W4366157473 hasConcept C103824480 @default.
- W4366157473 hasConcept C104267543 @default.
- W4366157473 hasConcept C127162648 @default.
- W4366157473 hasConcept C127413603 @default.
- W4366157473 hasConcept C146199129 @default.
- W4366157473 hasConcept C154945302 @default.
- W4366157473 hasConcept C158543913 @default.
- W4366157473 hasConcept C168110828 @default.
- W4366157473 hasConcept C187327482 @default.
- W4366157473 hasConcept C194232370 @default.
- W4366157473 hasConcept C195251586 @default.
- W4366157473 hasConcept C21651689 @default.
- W4366157473 hasConcept C24326235 @default.
- W4366157473 hasConcept C2776257435 @default.
- W4366157473 hasConcept C2778925768 @default.
- W4366157473 hasConcept C28799612 @default.
- W4366157473 hasConcept C31972630 @default.
- W4366157473 hasConcept C41008148 @default.
- W4366157473 hasConcept C76155785 @default.
- W4366157473 hasConcept C84462506 @default.
- W4366157473 hasConcept C9390403 @default.
- W4366157473 hasConceptScore W4366157473C102290492 @default.
- W4366157473 hasConceptScore W4366157473C103824480 @default.
- W4366157473 hasConceptScore W4366157473C104267543 @default.
- W4366157473 hasConceptScore W4366157473C127162648 @default.
- W4366157473 hasConceptScore W4366157473C127413603 @default.
- W4366157473 hasConceptScore W4366157473C146199129 @default.
- W4366157473 hasConceptScore W4366157473C154945302 @default.
- W4366157473 hasConceptScore W4366157473C158543913 @default.
- W4366157473 hasConceptScore W4366157473C168110828 @default.
- W4366157473 hasConceptScore W4366157473C187327482 @default.
- W4366157473 hasConceptScore W4366157473C194232370 @default.
- W4366157473 hasConceptScore W4366157473C195251586 @default.
- W4366157473 hasConceptScore W4366157473C21651689 @default.
- W4366157473 hasConceptScore W4366157473C24326235 @default.
- W4366157473 hasConceptScore W4366157473C2776257435 @default.
- W4366157473 hasConceptScore W4366157473C2778925768 @default.
- W4366157473 hasConceptScore W4366157473C28799612 @default.
- W4366157473 hasConceptScore W4366157473C31972630 @default.
- W4366157473 hasConceptScore W4366157473C41008148 @default.
- W4366157473 hasConceptScore W4366157473C76155785 @default.
- W4366157473 hasConceptScore W4366157473C84462506 @default.
- W4366157473 hasConceptScore W4366157473C9390403 @default.
- W4366157473 hasLocation W43661574731 @default.
- W4366157473 hasOpenAccess W4366157473 @default.
- W4366157473 hasPrimaryLocation W43661574731 @default.
- W4366157473 hasRelatedWork W1011097750 @default.
- W4366157473 hasRelatedWork W1991559868 @default.
- W4366157473 hasRelatedWork W1996601847 @default.
- W4366157473 hasRelatedWork W2054821702 @default.
- W4366157473 hasRelatedWork W2077006502 @default.
- W4366157473 hasRelatedWork W2349359060 @default.
- W4366157473 hasRelatedWork W2369400297 @default.
- W4366157473 hasRelatedWork W2799294747 @default.
- W4366157473 hasRelatedWork W4289550194 @default.
- W4366157473 hasRelatedWork W4320801346 @default.
- W4366157473 isParatext "false" @default.
- W4366157473 isRetracted "false" @default.
- W4366157473 workType "article" @default.