915-MHz Continuous-Wave Doppler Radar Sensor for Detection of Vital Signs
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Park, Jae-Hyun | - |
dc.contributor.author | Jeong, Yeo-Jin | - |
dc.contributor.author | Lee, Ga-Eun | - |
dc.contributor.author | Oh, Jun-Taek | - |
dc.contributor.author | Yang, Jong-Ryul | - |
dc.date.available | 2020-09-14T08:12:09Z | - |
dc.date.created | 2020-06-11 | - |
dc.date.issued | 2019-05 | - |
dc.identifier.issn | 2079-9292 | - |
dc.identifier.uri | http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/39036 | - |
dc.description.abstract | A miniaturized continuous-wave Doppler radar sensor operating at 915 MHz to remotely detect both respiration and heart rate (beats per minute) is presented. The proposed radar sensor comprises a front-end module including an implemented complementary metal-oxide semiconductor low-noise amplifier (LNA) and fractal-slot patch antennas, whose area was reduced by 15.2%. The two-stage inverter-based LNA was designed with an interstage capacitor and a feedback resistor to acquire ultrawide bandwidth. Two operating frequencies, 915 MHz and 2.45 GHz, were analyzed with regard to path loss for efficient operation because frequency affects detection sensitivity, reflected signal power from the human body, and measurement distance in a far-field condition. Path-loss calculation based on the simplified layer model indicates that the reflected power of the 915 MHz radar could be higher than that of the 2.45 GHz radar. The implemented radar front-end module excluding the LNA occupies 35 x 55 mm(2). Vital signs were obtained via a fast Fourier transform and digital filtering using raw signals. In an experiment with six subjects, the respiration and heart rate obtained at 0.8 m using the proposed radar sensor exhibited mean accuracies of 99.4% and 97.6% with respect to commercialized reference sensors, respectively. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | MDPI | - |
dc.relation.isPartOf | ELECTRONICS | - |
dc.title | 915-MHz Continuous-Wave Doppler Radar Sensor for Detection of Vital Signs | - |
dc.type | Article | - |
dc.identifier.doi | 10.3390/electronics8050561 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | ELECTRONICS, v.8, no.5 | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000470999900092 | - |
dc.identifier.scopusid | 2-s2.0-85066754387 | - |
dc.citation.number | 5 | - |
dc.citation.title | ELECTRONICS | - |
dc.citation.volume | 8 | - |
dc.contributor.affiliatedAuthor | Oh, Jun-Taek | - |
dc.type.docType | Article | - |
dc.description.isOpenAccess | N | - |
dc.subject.keywordAuthor | heartbeat detection | - |
dc.subject.keywordAuthor | respiration rate | - |
dc.subject.keywordAuthor | Doppler radar sensor | - |
dc.subject.keywordAuthor | path-loss analysis | - |
dc.subject.keywordAuthor | wideband low-noise amplifier | - |
dc.subject.keywordAuthor | fractal-slot patch antenna | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Engineering, Electrical & Electronic | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
Soongsil University Library 369 Sangdo-Ro, Dongjak-Gu, Seoul, Korea (06978)02-820-0733
COPYRIGHT ⓒ SOONGSIL UNIVERSITY, ALL RIGHTS RESERVED.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.