A Novel Microwave Architecture for Passive Sensing Applications

Davi V.Q. Rodrigues, Dongyang Tang, Changzhi Li

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The use of radio-frequency signals for passive indoor applications has gained significant interest over the last years. By leveraging ubiquitous Wi-Fi signals, the Doppler information of a target can be retrieved after the analysis of measurements associated with the received signal strength (RSS), the channel state information (CSI), or with passive Wi-Fi radar (PWR) techniques. However, RSS and CSI-based strategies require digital signal processing of high computational cost and/or special modifications to the Wi-Fi access point, while PWR-based approaches rely on a reference channel and interference removal algorithms to provide Doppler information. In this work, a novel microwave architecture for passive sensing applications is proposed. By taking advantage of the reflected RF signals and the direct signals from a non-cooperative transmitter, the proposed architecture can provide the Doppler information of a moving target. Experimental results confirm the effectiveness of the proposed scheme for the remote detection of small amplitude motion.

Original languageEnglish
Title of host publication2022 IEEE Radio and Wireless Symposium, RWS 2022
PublisherIEEE Computer Society
Pages57-59
Number of pages3
ISBN (Electronic)9781665434621
DOIs
StatePublished - 2022
Event2022 IEEE Radio and Wireless Symposium, RWS 2022 - Las Vegas, United States
Duration: Jan 16 2022Jan 19 2022

Publication series

NameIEEE Radio and Wireless Symposium, RWS
Volume2022-January
ISSN (Print)2164-2958
ISSN (Electronic)2164-2974

Conference

Conference2022 IEEE Radio and Wireless Symposium, RWS 2022
Country/TerritoryUnited States
CityLas Vegas
Period01/16/2201/19/22

Keywords

  • Doppler radar
  • passive radar
  • passive sensing
  • remote detection
  • spectrum sharing
  • wireless sensing

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