Two-dimensional noncontact vital sign detection using Doppler radar array approach

Xiaogang Yu, Changzhi Li, Jenshan Lin

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

16 Scopus citations

Abstract

A Doppler radar array is developed for two-dimensional noncontact vital sign detection. The radar array includes four detectors, an 8-channel data acquisition module, and a computer for spectrum analysis. Each of the detectors consists of a radio frequency transceiver, a baseband analog circuit, and a power management circuit. Using the radar array, cancellation of the noise from planar random walk of human body is achieved. The radar array also strengthens the detecting sensitivity on the respiration and heartbeat and its principle is discussed. A DC offset compensation algorithm is introduced to free the body movement cancellation from disturbance of unwanted DC offset. Experiments were performed with a human subject in lab environment. Results were analyzed to verify the improved detection performance at the presence of two-dimensional human body movement.

Original languageEnglish
Title of host publication2011 IEEE MTT-S International Microwave Symposium, IMS 2011
DOIs
StatePublished - 2011
Event2011 IEEE MTT-S International Microwave Symposium, IMS 2011 - Baltimore, MD, United States
Duration: Jun 5 2011Jun 10 2011

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
ISSN (Print)0149-645X

Conference

Conference2011 IEEE MTT-S International Microwave Symposium, IMS 2011
CountryUnited States
CityBaltimore, MD
Period06/5/1106/10/11

Keywords

  • Doppler radar
  • non-contact
  • radar array
  • random body movement
  • spectrum analysis
  • vital sign detection

Fingerprint Dive into the research topics of 'Two-dimensional noncontact vital sign detection using Doppler radar array approach'. Together they form a unique fingerprint.

Cite this