Self-copy-shift-based differential phase extracting method for fiber distributed acoustic sensing
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DOI: 10.3788/col202018.081201
Abstract: A differential phase extracting method based on self-copy-shift for distributed acoustic sensing is proposed. Heterodyne and optical hybrids are used to realize high signal-to-noise ratio in-phase and quadrature-phase (IQ) signal measurement. The measured signals are… read more here.
Keywords: phase; phase extracting; copy shift; differential phase ... See more keywords