Frequency-domain tests show self-mixing laser sensing beats a microphone for contact classification under targeted ambient noise, while broadband-noise advantages shrink and motor noise remains a limitation.
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Self-Mixing Laser Interferometry: In Search of an Ambient Noise-Resilient Alternative to Acoustic Sensing
Frequency-domain tests show self-mixing laser sensing beats a microphone for contact classification under targeted ambient noise, while broadband-noise advantages shrink and motor noise remains a limitation.