ECG vs. single-antenna system for heartbeat activity detection

Obeid, Dany; Zaharia, Gheorghe; Sadek, Sawsan; Zein, Ghaïs El

doi:10.1145/2093698.2093838

Cited by 5 publications

(10 citation statements)

References 14 publications

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“…This system was used to measure the time-varying phase of the S 21 parameter for different operating frequencies and different radiated powers. In addition, a study using a 16 GHz singleantenna VNA system was realized to measure the S 11 phase variation for a person while holding the breath [11]. In this case, the same antenna is used for both emission and reception.…”

Section: Comparison Between Heartbeat Rates Extracted From Single Andmentioning

confidence: 99%

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Heartbeat rate measurement using microwave systems: single-antenna, two-antennas, and modeling a moving person

El-Samad

Obeid

Zaharia

et al. 2018

Analog Integr Circ Sig Process

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This paper presents a microwave system for heartbeat rate measurement. This system is based on using a vector network analyzer and horn antennas. The system generates a continuous wave signal toward a person's chest then the reflected signal is analyzed. The phase difference between the emitted and the reflected signals contains information about the chest movement; hence, the heartbeat rate can be extracted. In this work, several scenarios for detecting the heart activity are considered. The first scenario aims to provide a comparative study for using single-antenna and two-antennas microwave systems. Several radiated powers are considered in this scenario. Simultaneously with the microwave system, a wireless electrocardiograph is used as reference in order to determine the accuracy of the system. Measurements are performed in both cases when breathing normally and when holding the breath. The second scenario aims to test the ability of detecting the heartbeat activity of a person while moving. Measurements are performed while the subject walks towards the radar. Modeling is used for this purpose. The operating frequency used is 20 GHz in both scenarios. Signals are processed using wavelet transform and results show the ability to extract the heartbeat rate even with the presence of body movement.

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Section: Comparison Between Heartbeat Rates Extracted From Single Andmentioning

confidence: 99%

“…where j is the j th decomposition level or step and k is the k th wavelet coefficient at the j th level [11]. The variables and are integers that scale and dilate ∅ to generate wavelets.…”

Section: Signal Processing Using Wavelet Decompositionmentioning

confidence: 99%

Heartbeat rate measurement using microwave systems: single-antenna, two-antennas, and modeling a moving person

El-Samad

Obeid

Zaharia

et al. 2018

Analog Integr Circ Sig Process

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“…Most of the journals used network vector analyzer (VNA) to compute the raw data in term of Sparameter. The use of a VNA accommodates a quick and simple installation process [3]. The use of VNA has the ability to tuning both frequency and power [5].…”

Section: A Proposed Systemmentioning

confidence: 99%

“…When the target is person breath normally, the modulation of the reflected signal contains information about chest displacement due to heartbeats and respiration. However, when holding breath, the chest displacement due only to heartbeats [2][3]. Hence, the measurement of this small displacement is the concerns for extracting the heartbeat signal.…”

Section: Introductionmentioning

confidence: 99%

An analysis of vital sign using microwave Doppler technique

Othman

Baharuddin

Sulaiman

et al. 2014

2014 International Symposium on Technology Management and Emerging Technologies

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This paper presents a system for hearbeat detection using microwave Doppler technique. Using a vector network analyzer, a microwave system is tested for the detection of the heartbeat signal at a distance of 1 feet from a person. The proposed system shows the ability of detecting the heartbeat signals with the possibility of tuning the radiated power. Measurements are performed at 10dbm, 0dbm, -10dbm, -15dbm and -25dbm. Based on measurements perform for respiration and heart beatings, a signal representing the cardiopulmonary activity is presented. The heartbeat rate and heart rate are extracted from the signal using wavelet and classic filters.

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“…In addition, a study of a single-antenna VNA system operation at 16 GHz was realized for a person while holding his breath [3].…”

Section: Introductionmentioning

confidence: 99%

Comparison between single and two-antenna VNA system used for heartbeat rate extraction

El-Samad

Obeid

Zaharia

et al. 2017

2017 Sensors Networks Smart and Emerging Technologies (SENSET)

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Abstract-This paper presents a microwave system for measuring the cardiopulmonary activity performed in two ways: by using single antenna and by using two antennas. This system generates a continuous wave signal at 20 GHz toward the target and then measure the reflected signal. The target is the person's chest set placed at a distance of 1 m. The VNA measures the phase variation between the emitted and received signals. This phase variation contains information about the movement of the chest. An electrocardiograph is used simultaneously with the system as reference in order to determine the accuracy of the VNA system. The measurements are performed for a person under two conditions: breathing normally and holding the breath. Wavelet transform is used for the processing the obtained signals and the heartbeat rate is extracted accurately.

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ECG vs. single-antenna system for heartbeat activity detection

Cited by 5 publications

References 14 publications

Heartbeat rate measurement using microwave systems: single-antenna, two-antennas, and modeling a moving person

Heartbeat rate measurement using microwave systems: single-antenna, two-antennas, and modeling a moving person

An analysis of vital sign using microwave Doppler technique

Comparison between single and two-antenna VNA system used for heartbeat rate extraction

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