UWB Radar Vibrometry: An RF Microphone

Yu Rong, Sharanya Srinivas, Adarsh Venkataramani, Daniel W. Bliss

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

UWB radars can detect minute surface displacements therefore, have been exploited for vibrometry applications. In this paper, we demonstrate via experimentation that it is feasible to remotely sense sound and recover acoustic signals from vibrating sources using radars. Early research in this domain only demonstrated single sound source recovery using narrowband millimeter wave radars in direct line-of-sight scenarios. Instead, we illustrate using X band UWB radars that, multiple sources separated in ranges are observed and their signals isolated and recovered. Additionally, we leverage the see-through ability of microwave signals to extend this technology to surveillance of targets obstructed by barriers. We further drive this notion of blind surveillance by reconstructing audio from a passive object which is merely in proximity of the sound source using clever radar and audio processing techniques.

Original languageEnglish (US)
Title of host publicationConference Record - 53rd Asilomar Conference on Circuits, Systems and Computers, ACSSC 2019
EditorsMichael B. Matthews
PublisherIEEE Computer Society
Pages1066-1070
Number of pages5
ISBN (Electronic)9781728143002
DOIs
StatePublished - Nov 2019
Event53rd Asilomar Conference on Circuits, Systems and Computers, ACSSC 2019 - Pacific Grove, United States
Duration: Nov 3 2019Nov 6 2019

Publication series

NameConference Record - Asilomar Conference on Signals, Systems and Computers
Volume2019-November
ISSN (Print)1058-6393

Conference

Conference53rd Asilomar Conference on Circuits, Systems and Computers, ACSSC 2019
CountryUnited States
CityPacific Grove
Period11/3/1911/6/19

Keywords

  • Non-line of Sight Sensing
  • RF Microphone
  • Sound Recovery
  • UWB

ASJC Scopus subject areas

  • Signal Processing
  • Computer Networks and Communications

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  • Cite this

    Rong, Y., Srinivas, S., Venkataramani, A., & Bliss, D. W. (2019). UWB Radar Vibrometry: An RF Microphone. In M. B. Matthews (Ed.), Conference Record - 53rd Asilomar Conference on Circuits, Systems and Computers, ACSSC 2019 (pp. 1066-1070). [9048862] (Conference Record - Asilomar Conference on Signals, Systems and Computers; Vol. 2019-November). IEEE Computer Society. https://doi.org/10.1109/IEEECONF44664.2019.9048862