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Open access Sep 2026

SNR enhancement for Φ-OTDR system based on SG filtering and double outlier detection combined with linear interpolation

In phase-sensitive optical time domain reflectometry (Φ-OTDR) sensing systems, noise can reduce the vibration positioning signal-to-noise ratio (SNR) and distort the recovered phase signal. This poses the difficulty of vibration detection. To solve this problem, a Φ-OTDR signal processing method based on Savitzky–Golay...

Li-Juan Zhao, Hong Qu, Zhi-Niu Xu · 0 citations

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