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Conferences > OFS > 2020 > T3 > T3.38

A φ-OTDR using Direct Digital Synthesis of Chirps and Sidelobe Suppression with Nonlinear Frequency Modulation

Yonas Muanenda, Stefano Faralli, Claudio J. Oton, Philippe Velha, and Fabrizio Di Pasquale

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Abstract

We experimentally demonstrate a novel φ-OTDR scheme using direct digital synthesis of chirps and advanced matched filtering with nonlinear frequency modulation providing ~16 dB improvement in effective suppression of autocorrelation sidelobes over conventional linear chirping.

© 2020 The Author(s)

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