Remote sensing of heart rate and patterns of respiration on a stationary subject using 94 GHz millimeter wave interferometry.

Journal Article · Wed Jun 01 00:00:00 EDT 2011 · IEEE Transactions on Bio-Medical Engineering

DOI:https://doi.org/10.1109/TBME.2011.2111371· OSTI ID:1033491

Mikhelson, I V; Bakhtiari, S; Elmer, T W; Sahakian, A V ^[1]

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1. Nuclear Engineering Division

Using continuous wave, 94-GHz millimeter-wave interferometry, a signal representing chest wall motion can be obtained that contains both the heart rate and respiration patterns of a human subject. These components have to be separated from each other in the received signal. Our method was to use the quadrature and in-phase components of the signal, after removing the mean of each, to find the phase, unwrap it, and convert it to a displacement measurement. Using this, the power spectrum was examined for peaks, which corresponded to the heart rate and respiration rate. The displacement waveform of the chest was also analyzed for discrete heartbeats using a novel wavelet decomposition technique.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• DOE Contract Number: DE-AC02-06CH11357
• OSTI ID: 1033491
• Report Number(s): ANL/NE/JA-71918; IEBEAX; TRN: US201202%%795
• Journal Information: IEEE Transactions on Bio-Medical Engineering, Vol. 58, Issue 6; ISSN 0018-9294
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

59 BASIC BIOLOGICAL SCIENCES
60 APPLIED LIFE SCIENCES
CHEST
INTERFEROMETRY
QUADRATURES
REMOTE SENSING
RESPIRATION
WAVE FORMS
HEART