Real-time phase demodulation method for heterodyne Φ-OTDR using single-sideband spectrum interception and rotated-vector-sum.

To meet the real-time requirements of phase-sensitive optical time-domain reflectometry (Φ-OTDR) applications in practical scenarios, accelerating the Rayleigh backscattering (RBS) phase demodulation is necessary. Here, we propose what we believe to…

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