title: Clutter isolation and cardiac monitoring using harmonic doppler radar with heterodyne receiver and passive RF tags.
abstract: A harmonic radar employing the use of harmonic passive RF tags can be successfully used to isolate the human respiration from environmental clutter. This paper describes the successful use of heterodyne receiver architecture with Doppler radar to track the heart-rate of a human being using passive body-worn harmonic tags in presence of a controlled noise generator at distances up to 120 cm. The heterodyne system results have been compared with those of a conventional Doppler radar for cardiopulmonary monitoring that fails to isolate the noise from heart-rate in presence of a noise source.
authors.affiliation: Electrical Engineering Department of University of Hawaii at Manoa, USA. singha@hawaii.edu
authors.forename: Aditya
authors.initials: A
authors.lastname: Singh
authors.forename: Victor
authors.initials: V
authors.lastname: Lubecke
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D008872:Microwaves; D011825:Radar / Q000295:instrumentation*; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D013685:Telecommunications / Q000295:instrumentation*; D013686:Telemetry / Q000295:instrumentation*