Wireless Sensing for the Respiratory Activity of Human Beings : Measurements and Wide-band Numerical Analysis
Joint Authors
Mariani Primiani, Valter
Scalise, Lorenzo
De Leo, Alfredo
Russo, Paola
Cerri, Graziano
Shahu, Desar
Source
International Journal of Antennas and Propagation
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-04-22
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
An electromagnetic sensing system for the measurement of the respiratory activity is presented.
The aims are to demonstrate the feasibility of the proposed approach and in particular to evaluate the effect on the measured signal of the distance between the subject and the sensing apparatus.
Moreover, an electromagnetic model of the system, including the monitored subject, is proposed as a tool to solve the problem of selecting working parameters for system design.
The sensing system is based on the measurement of the phase variation of the reflection coefficient caused by the respiratory activity.
The phase signal compared with the thorax displacement measured by a reference instrument shows a high correlation (R=0.97) for different subject postures (sitting, standing, and lying) and a reduction of the signal amplitude with the distance -0.11 dB/cm is reported.
The numerical simulations performed on a wide-band highlight the frequencies where the method exhibits the highest sensitivity to thorax movements.
The sensitivity can be further improved by reducing the antenna beamwidth.
Despite the signal amplitude reduction, the proposed system makes it possible to correctly operate at distances up to 2.5 m.
American Psychological Association (APA)
Scalise, Lorenzo& Mariani Primiani, Valter& Russo, Paola& De Leo, Alfredo& Shahu, Desar& Cerri, Graziano. 2013. Wireless Sensing for the Respiratory Activity of Human Beings : Measurements and Wide-band Numerical Analysis. International Journal of Antennas and Propagation،Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-468846
Modern Language Association (MLA)
Scalise, Lorenzo…[et al.]. Wireless Sensing for the Respiratory Activity of Human Beings : Measurements and Wide-band Numerical Analysis. International Journal of Antennas and Propagation No. 2013 (2013), pp.1-10.
https://search.emarefa.net/detail/BIM-468846
American Medical Association (AMA)
Scalise, Lorenzo& Mariani Primiani, Valter& Russo, Paola& De Leo, Alfredo& Shahu, Desar& Cerri, Graziano. Wireless Sensing for the Respiratory Activity of Human Beings : Measurements and Wide-band Numerical Analysis. International Journal of Antennas and Propagation. 2013. Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-468846
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-468846