Pedro J. Vidal-Moreno, E. Rochat, M. Fernández-Ruiz, H. Martins, S. Martín-López, Manuel Ocaña, M. González-Herráez
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Distributed acoustic sensors cumulatively measure fiber variations, introducing a 1/f noise that makes long-term measurements impossible. We present an “absolute” measurement method that allows accurate single-shot measurements at frequencies from <0.1 μHz to acoustic frequencies.
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