DISTRIBUTED ACOUSTIC SENSING (DAS) SYSTEM FOR ACOUSTIC EVENT DETECTION BASED UPON COVARIANCE MATRICES AND MACHINE LEARNING AND RELATED METHODS
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United States of America
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Issued Date -
Oct 31, 2024
app pub date -
Apr 28, 2023
filing date -
Apr 28, 2023
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Abstract
A distributed acoustic sensing (DAS) system may include an optical fiber, a phase-sensitive OTDR (ϕ-OTDR) coupled to the optical fiber, and a processor cooperating with the ϕ-OTDR. The processor may be configured to generate a series of covariance matrices for DAS data from the ϕ-OTDR, determine acoustic events based upon the covariance matrices and a machine learning network, and generate an acoustic event report from the acoustic events.
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