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Broadening frequency response of distributed sparse- wideband vibration sensing via time-division multifrequency sub-Nyquist sampling

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Abstract

A sub-Nyquist sampling sequence with an average repetition rate less than 5-kHz can be efficiently utilized to detect 24-kHz sparse-wideband vibration signal along 4.5-km sensing fiber and recover its frequency information via compressive sensing technique.

© 2020 The Author(s)

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