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Conferences > OFS > 2023 > Tu2 > Tu2.5

Frequency-Time 2D Correlation for SNR Improvement in Multifrequency Database Demodulation CP-ΦOTDR

Pedro J. Vidal-Moreno, Hugo Martins, Sonia Martin-Lopez, and Miguel Gonzalez-Herraez

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Abstract

2D correlation enhances SNR of Rayleigh backscattering traces in Multi-Frequency Database Demodulation (MFDD)-CP-ΦOTDR time-frequency maps, avoiding temporal averaging and reducing initial calibration time. This brings the calibrated DAS closer to field measurements.

© 2023 The Author(s)

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