A Novel Vital-Sign Sensing Algorithm for Multiple Subjects Based on 24-GHz FMCW Doppler Radar

A novel non-contact vital-sign sensing algorithm for use in cases of multiple subjects is proposed. The approach uses a 24 GHz frequency-modulated continuous-wave Doppler radar with the parametric spectral estimation method. Doppler processing and spectral estimation are concurrently implemented to...

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Published inRemote sensing (Basel, Switzerland) Vol. 11; no. 10; p. 1237
Main Authors Lee, Hyunjae, Kim, Byung-Hyun, Park, Jin-Kwan, Yook, Jong-Gwan
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 24.05.2019
Subjects
Algorithms
breathing
Continuous radiation
Doppler radar
Fourier transforms
Frequency dependence
health services
Heart rate
Identification
Information processing
Interferometry
Methods
Millimeter waves
monitoring
Monitoring systems
multiple subjects
mutual interference
Parameter estimation
parametric spectral estimation
patients
Periodicity
Physiology
Radar
Radar equipment
Radar systems
Remote monitoring
remote sensing
Researchers
Respiration
Sensors
Signal processing
Sleep apnea
Spectra
Surveillance radar
Target recognition
vital sign monitoring
United States > US
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Abstract A novel non-contact vital-sign sensing algorithm for use in cases of multiple subjects is proposed. The approach uses a 24 GHz frequency-modulated continuous-wave Doppler radar with the parametric spectral estimation method. Doppler processing and spectral estimation are concurrently implemented to detect vital signs from more than one subject, revealing excellent results. The parametric spectral estimation method is utilized to clearly identify multiple targets, making it possible to distinguish multiple targets located less than 40 cm apart, which is beyond the limit of the theoretical range resolution. Fourier transformation is used to extract phase information, and the result is combined with the spectral estimation result. To eliminate mutual interference, the range integration is performed when combining the range and phase information. By considering breathing and heartbeat periodicity, the proposed algorithm can accurately extract vital signs in real time by applying an auto-regressive algorithm. The capability of a contactless and unobtrusive vital sign measurement with a millimeter wave radar system has innumerable applications, such as remote patient monitoring, emergency surveillance, and personal health care.
AbstractList A novel non-contact vital-sign sensing algorithm for use in cases of multiple subjects is proposed. The approach uses a 24 GHz frequency-modulated continuous-wave Doppler radar with the parametric spectral estimation method. Doppler processing and spectral estimation are concurrently implemented to detect vital signs from more than one subject, revealing excellent results. The parametric spectral estimation method is utilized to clearly identify multiple targets, making it possible to distinguish multiple targets located less than 40 cm apart, which is beyond the limit of the theoretical range resolution. Fourier transformation is used to extract phase information, and the result is combined with the spectral estimation result. To eliminate mutual interference, the range integration is performed when combining the range and phase information. By considering breathing and heartbeat periodicity, the proposed algorithm can accurately extract vital signs in real time by applying an auto-regressive algorithm. The capability of a contactless and unobtrusive vital sign measurement with a millimeter wave radar system has innumerable applications, such as remote patient monitoring, emergency surveillance, and personal health care.
Author Yook, Jong-Gwan
Park, Jin-Kwan
Kim, Byung-Hyun
Lee, Hyunjae
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Cites_doi 10.1109/TMTT.2016.2549531
10.1109/TMTT.2017.2650911
10.1088/0967-3334/35/5/807
10.1109/LAWP.2012.2198869
10.1038/s41598-018-29984-5
10.1109/LMWC.2015.2463214
10.1109/TMTT.2017.2662680
10.1109/TAP.1986.1143830
10.1109/JETCAS.2017.2789278
10.1145/2702123.2702200
10.1049/el.2016.3517
10.1016/j.bios.2017.03.016
10.1109/IEMBS.2006.260148
10.1109/TMTT.2013.2256924
10.1109/TBME.2013.2288319
10.1109/TBCAS.2018.2813013
10.1109/TBCAS.2019.2908198
10.1007/s11517-008-0408-x
10.1109/TMTT.2014.2358572
10.3390/s17020290
10.1109/RADAR.2017.7944298
10.1109/TBCAS.2016.2541680
10.1038/srep05093
10.1109/EMBC.2016.7591952
10.1109/EMBC.2018.8513392
10.1109/TBCAS.2013.2280913
10.1109/TMTT.2012.2228223
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References Hong (ref_4) 2014; 8
Lin (ref_10) 2017; 11
ref_14
Will (ref_3) 2018; 8
ref_12
ref_11
Li (ref_20) 2017; 65
Ren (ref_25) 2015; 25
ref_30
Kwak (ref_1) 2017; 94
Schmidt (ref_31) 1986; 34
Li (ref_19) 2013; 61
ref_18
Chen (ref_13) 2016; 52
ref_16
Shafiq (ref_2) 2014; 4
Tarassenko (ref_32) 2014; 35
Yue (ref_21) 2017; 2
Hu (ref_17) 2014; 61
Wang (ref_26) 2013; 61
Kim (ref_5) 2016; 64
ref_24
ref_23
Mercuri (ref_15) 2018; 12
ref_22
Peng (ref_29) 2018; 66
Peng (ref_28) 2017; 65
Kim (ref_33) 2012; 11
ref_9
Suzuki (ref_6) 2009; 47
ref_8
ref_7
Wang (ref_27) 2014; 62
References_xml – volume: 64
  start-page: 1667
  year: 2016
  ident: ref_5
  article-title: A proximity coupling RF sensor for wrist pulse detection based on injection-locked PLL
  publication-title: IEEE Trans. Microw. Theory Tech.
  doi: 10.1109/TMTT.2016.2549531
– volume: 65
  start-page: 1692
  year: 2017
  ident: ref_20
  article-title: A review on recent progress of portalbe short-range noncontact microwave radar systems
  publication-title: IEEE Trans. Microw. Theory Tech.
  doi: 10.1109/TMTT.2017.2650911
– ident: ref_30
– volume: 35
  start-page: 807
  year: 2014
  ident: ref_32
  article-title: Non-contact video-based vital sign monitoring using ambient light and auto-regressive models
  publication-title: Physiol. Meas.
  doi: 10.1088/0967-3334/35/5/807
– ident: ref_24
– volume: 11
  start-page: 535
  year: 2012
  ident: ref_33
  article-title: Wireless rf vital signal sensor using autoregressive spectral estimation method
  publication-title: IEEE Antennas Wirel. Propag. Lett.
  doi: 10.1109/LAWP.2012.2198869
– volume: 8
  start-page: 11551
  year: 2018
  ident: ref_3
  article-title: Radar-based heart sound detection
  publication-title: Sci. Rep.
  doi: 10.1038/s41598-018-29984-5
– volume: 25
  start-page: 690
  year: 2015
  ident: ref_25
  article-title: Noncontact multiple heartbeats detection and subject localization using uwb impulse doppler radar
  publication-title: IEEE Microw. Wirel. Compon. Lett.
  doi: 10.1109/LMWC.2015.2463214
– volume: 65
  start-page: 3443
  year: 2017
  ident: ref_28
  article-title: A k-band portable fmcw radar with beamforming array for short-range localization and vital doppler targets discrimination
  publication-title: IEEE Trans. Microw. Theory Tech.
  doi: 10.1109/TMTT.2017.2662680
– volume: 34
  start-page: 276
  year: 1986
  ident: ref_31
  article-title: Multiple emitter location and signal parameter estimation
  publication-title: IEEE Trans. Antennas Propag.
  doi: 10.1109/TAP.1986.1143830
– ident: ref_8
  doi: 10.1109/JETCAS.2017.2789278
– ident: ref_16
– ident: ref_9
  doi: 10.1145/2702123.2702200
– volume: 52
  start-page: 2011
  year: 2016
  ident: ref_13
  article-title: Novel doppler approach to monitoring driver drowsiness
  publication-title: Electron. Lett.
  doi: 10.1049/el.2016.3517
– volume: 94
  start-page: 250
  year: 2017
  ident: ref_1
  article-title: Flexible heartbeat sensor for wearable device
  publication-title: Biosens. Bioelectron.
  doi: 10.1016/j.bios.2017.03.016
– ident: ref_18
– ident: ref_7
  doi: 10.1109/IEMBS.2006.260148
– volume: 61
  start-page: 2046
  year: 2013
  ident: ref_19
  article-title: A review on recent advances in doppler radar sensors for noncontact healthcare monitoring
  publication-title: IEEE Trans. Microw. Theory Tech.
  doi: 10.1109/TMTT.2013.2256924
– volume: 61
  start-page: 725
  year: 2014
  ident: ref_17
  article-title: Noncontact accurate measurement of cardiopulmonary activity using a compact quadrature doppler radar sensor
  publication-title: IEEE Trans. Biomed. Eng.
  doi: 10.1109/TBME.2013.2288319
– volume: 12
  start-page: 632
  year: 2018
  ident: ref_15
  article-title: A direct phase-tracking doppler radar using wavelet independent component analysis for non-contact respiratory and heart rate monitoring
  publication-title: IEEE Trans. Biomed. Circuits Syst.
  doi: 10.1109/TBCAS.2018.2813013
– ident: ref_14
  doi: 10.1109/TBCAS.2019.2908198
– volume: 2
  start-page: 86
  year: 2017
  ident: ref_21
  article-title: Extracting multi-person respiration from entangled rf signals
  publication-title: Proc. ACM Interact. Mob. Wearable Ubiquitous Technol.
– volume: 47
  start-page: 101
  year: 2009
  ident: ref_6
  article-title: A non-contact vital sign monitoring system for ambulances using dual-frequency microwave radars
  publication-title: Med. Biol. Eng. Comput.
  doi: 10.1007/s11517-008-0408-x
– volume: 66
  start-page: 5075
  year: 2018
  ident: ref_29
  article-title: A portalbe k-band 3-d mimo radar with nonuniformly spaced array for short-range localization
  publication-title: IEEE Trans. Micrw. Theory Tech.
– volume: 62
  start-page: 2812
  year: 2014
  ident: ref_27
  article-title: A hybrid fmcw-interferometry radar for indoor precise positioning and versatile life activity monitoring
  publication-title: IEEE Trans. Microw. Theory Tech.
  doi: 10.1109/TMTT.2014.2358572
– ident: ref_23
  doi: 10.3390/s17020290
– ident: ref_22
  doi: 10.1109/RADAR.2017.7944298
– volume: 11
  start-page: 189
  year: 2017
  ident: ref_10
  article-title: Sleepsense: A noncontact and cost-effective sleep monitoring system
  publication-title: IEEE Trans. Biomed. Circuits Syst.
  doi: 10.1109/TBCAS.2016.2541680
– volume: 4
  start-page: 5093
  year: 2014
  ident: ref_2
  article-title: Surface chest motion decomposition for cardiovascular monitoring
  publication-title: Sci. Rep.
  doi: 10.1038/srep05093
– ident: ref_12
  doi: 10.1109/EMBC.2016.7591952
– ident: ref_11
  doi: 10.1109/EMBC.2018.8513392
– volume: 8
  start-page: 584
  year: 2014
  ident: ref_4
  article-title: Noncontact proximity vital sign sensor based on pll for sensitivity enhancement
  publication-title: IEEE Trans. Biomed. Circuits Syst.
  doi: 10.1109/TBCAS.2013.2280913
– volume: 61
  start-page: 696
  year: 2013
  ident: ref_26
  article-title: Detection of concealed individuals based on their vital signs by using a see-through-wall imaging system with a self-injection-locked radar
  publication-title: IEEE Trans. Microw. Theory Tech.
  doi: 10.1109/TMTT.2012.2228223
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Snippet A novel non-contact vital-sign sensing algorithm for use in cases of multiple subjects is proposed. The approach uses a 24 GHz frequency-modulated...
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SubjectTerms Algorithms
breathing
Continuous radiation
Doppler radar
Fourier transforms
Frequency dependence
health services
Heart rate
Identification
Information processing
Interferometry
Methods
Millimeter waves
monitoring
Monitoring systems
multiple subjects
mutual interference
Parameter estimation
parametric spectral estimation
patients
Periodicity
Physiology
Radar
Radar equipment
Radar systems
Remote monitoring
remote sensing
Researchers
Respiration
Sensors
Signal processing
Sleep apnea
Spectra
Surveillance radar
Target recognition
vital sign monitoring
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Title A Novel Vital-Sign Sensing Algorithm for Multiple Subjects Based on 24-GHz FMCW Doppler Radar
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