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Enabling Adaptive and Enhanced Acoustic Sensing Using Nonlinear Dynamics

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Document pages: 4 pages

Abstract: Transmission of real-time data is strongly increasing due to remoteprocessing of sensor data, among other things. A route to meet this demand isadaptive sensing, in which sensors acquire only relevant information usingpre-processing at sensor level. We present here adaptive acoustic sensors basedon mechanical oscillators with integrated sensing and actuation. Their dynamicsare shifted into a nonlinear regime using feedback or coupling. This enhancesdynamic range, frequency resolution and signal-to-noise ratio. Combiningtunable sensing properties with sound analysis could enable acquiring of onlyrelevant information rather than extracting this from irrelevant data bypost-processing.

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