Detection of human respiration using square‐wave modulated electromagnetic impulses | Zendy

Ong Keat G. | Zendy; Dreschel William R. | Zendy; Grimes Craig A. | Zendy

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Detection of human respiration using square‐wave modulated electromagnetic impulses

Author(s) -

Ong Keat G.,

Dreschel William R.,

Grimes Craig A.

Publication year - 2003

Publication title -

microwave and optical technology letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.304

H-Index - 76

eISSN - 1098-2760

pISSN - 0895-2477

DOI - 10.1002/mop.10759

Subject(s) - impulse (physics) , microwave , amplitude , physics , acoustics , electromagnetic radiation , optics , quantum mechanics

A technique for monitoring human respiration utilizing square‐wave modulated electromagnetic impulses is presented. Lung volume changes associated with human respiration alter the time‐amplitude spectrum of a reflected electromagnetic impulse, while the Brillouin‐precursor associated with impulse propagation through dispersive media enables detection through otherwise opaque barriers. Results of numerical simulations and experiments are presented. © 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 36: 339–343, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10759

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