Sensor Nodes for Doppler Radar Measurements of Life Signs

Mostafanezhad, Isar; Park, Byung-Kwon; Borić–Lubecke, Olga; Lubecke, Victor M.; Høst-Madsen, A.

doi:10.1109/mwsym.2007.380392

Cited by 17 publications

(12 citation statements)

References 4 publications

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“…nmh+hawaii.edu@nomh.org; lubecke@ieee.org; isar@spectra.eng.hawaii.edu; olga@ieee.org; madsen@spectra.eng.hawaii.edu 1) Sensor Node: The sensor node used for receiving and demodulating the radar signal is described in [3]. The diagram in Fig.…”

Section: B Common Setupmentioning

confidence: 99%

“…A sensor node [3] was placed near the transmitter with the filtered and amplified signal recorded for offline processing by a computer based data acquisition system.…”

Section: First Testmentioning

confidence: 99%

“…3), after filtering, was scanned with a moving FFT window to calculate the rates as in [3] to determine the heart and respiration rates. These heart and respiratory rates, both contact (reference) and non-contact (sensor) as a function of time can be seen in Fig.…”

Section: A Datamentioning

confidence: 99%

“…The baby unit provides the radio signal and a passive sensor node [3] uses this signal and its reflection off the target to generate a doppler output signal.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Non-Contact Cardiopulmonary Sensing with a Baby Monitor

Hafner

Mostafanezhad

Lubecke

et al. 2007

2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society

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Section: B Common Setupmentioning

confidence: 99%

“…A sensor node [3] was placed near the transmitter with the filtered and amplified signal recorded for offline processing by a computer based data acquisition system.…”

Section: First Testmentioning

confidence: 99%

Section: A Datamentioning

confidence: 99%

“…The baby unit provides the radio signal and a passive sensor node [3] uses this signal and its reflection off the target to generate a doppler output signal.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Non-Contact Cardiopulmonary Sensing with a Baby Monitor

Hafner

Mostafanezhad

Lubecke

et al. 2007

2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society

Self Cite

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“…Recent advances in radio-frequency engineering and signal processing technologies, have created the possibility of using Doppler-based radio-frequency sensors for noninvasive health monitoring [1]. The basic principle is that a radio-frequency sensor can provide a sensitive measurement of the underlying motion of a subject, and signal processing techniques can then be used to determine parameters such as gross bodily movement, respiration and even movement due to individual heart beats.…”

Section: Introductionmentioning

confidence: 99%

Detection of cardiac activity using a 5.8 GHz radio frequency sensor

Vasu

Fox²,

Brabetz

et al. 2009

2009 Annual International Conference of the IEEE Engineering in Medicine and Biology Society

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A 5.8-GHz ISM-Band radio-frequency sensor has been developed for non-contact measurement of respiration and heart rate from stationary and semi-stationary subjects at a distance of 0.5 to 1.5 meters. We report on the accuracy of the heart rate measurements obtained using two algorithmic approaches, as compared to a reference heart rate obtained using a pulse oximeter. Simultaneous Photoplethysmograph (PPG) and non-contact sensor recordings were recorded over fifteen minute periods for ten healthy subjects (8M/2F, ages 29.6 + or - 5.6 yrs) One algorithm is based on automated detection of individual peaks associated with each cardiac cycle; a second algorithm extracts a heart rate over a 60-second period using spectral analysis. Peaks were also extracted manually for comparison with the automated method. The peak-detection methods were less accurate than the spectral methods, but suggest the possibility of acquiring beat by beat data; the spectral algorithms measured heart rate to within + or -10% for the ten subjects chosen. Non-contact measurement of heart rate will be useful in chronic disease monitoring for conditions such as heart failure and cardiovascular disease.

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Signal processing techniques for vital sign monitoring using mobile short range doppler radar

Rahman

Yavari

Gao

et al. 2015

2015 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems (BioWireleSS)

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This paper investigates mobile noncontact vital sign monitoring device for short range application. The radar module is mounted on a programmable linear stage, and precise stage movements are monitored by an optical tracking system. The motion artifacts due to radar system movements are removed using IIR filter and adaptive noise cancellation techniques. The system is capable of extracting respiration rate even in the presence of radar module motion. In many applications, vital sign measurement from a mobile platform will be very useful, i.e., using unmanned vehicle as a first responder in battlefield including other military and medical applications. Our experiments and theoretical techniques provide a baseline that can be potentially used to measure vital signs from any arbitrarily moving radar system.

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Sensor Nodes for Doppler Radar Measurements of Life Signs

Cited by 17 publications

References 4 publications

Non-Contact Cardiopulmonary Sensing with a Baby Monitor

Non-Contact Cardiopulmonary Sensing with a Baby Monitor

Detection of cardiac activity using a 5.8 GHz radio frequency sensor

Signal processing techniques for vital sign monitoring using mobile short range doppler radar

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