Portable Micro-Doppler Radar with Quadrature Radar Architecture for Non-Contact Human Breath Detection
Recently, rapid advances in radio detection and ranging (radar) technology applications have been implemented in various fields. In particular, micro-Doppler radar has been widely developed to perform certain tasks, such as detection of buried victims in natural disaster, drone system detection, and...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-08-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/21/17/5807 |
| _version_ | 1797520826774323200 |
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| author | Catur Apriono Fathul Muin Filbert H. Juwono |
| author_facet | Catur Apriono Fathul Muin Filbert H. Juwono |
| author_sort | Catur Apriono |
| collection | DOAJ |
| description | Recently, rapid advances in radio detection and ranging (radar) technology applications have been implemented in various fields. In particular, micro-Doppler radar has been widely developed to perform certain tasks, such as detection of buried victims in natural disaster, drone system detection, and classification of humans and animals. Further, micro-Doppler radar can also be implemented in medical applications for remote monitoring and examination. This paper proposes a human respiration rate detection system using micro-Doppler radar with quadrature architecture in the industrial, scientific, and medical (ISM) frequency of 5.8 GHz. We use a mathematical model of human breathing to further explore any insights into signal processes in the radar. The experimental system is designed using the USRP B200 mini-module as the main component of the radar and the Vivaldi antennas working at 5.8 GHz. The radar system is integrated directly with the GNU Radio Companion software as the processing part. Using a frequency of 5.8 GHz and USRP output power of 0.33 mW, our proposed method was able to detect the respiration rate at a distance of 2 m or less with acceptable error. In addition, the radar system could differentiate different frequency rates for different targets, demonstrating that it is highly sensitive. We also emphasize that the designed radar system can be used as a portable device which offers flexibility to be used anytime and anywhere. |
| first_indexed | 2024-03-10T08:04:03Z |
| format | Article |
| id | doaj.art-886fff5271454497bec7bc1f6b0d6f79 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T08:04:03Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-886fff5271454497bec7bc1f6b0d6f792023-11-22T11:12:43ZengMDPI AGSensors1424-82202021-08-012117580710.3390/s21175807Portable Micro-Doppler Radar with Quadrature Radar Architecture for Non-Contact Human Breath DetectionCatur Apriono0Fathul Muin1Filbert H. Juwono2Department of Electrical Engineering, Faculty of Engineering, Universitas Indonesia, Depok 16424, IndonesiaDepartment of Electrical Engineering, Faculty of Engineering, Universitas Indonesia, Depok 16424, IndonesiaDepartment of Electrical and Computer Engineering, Curtin University Malaysia, Miri 98009, MalaysiaRecently, rapid advances in radio detection and ranging (radar) technology applications have been implemented in various fields. In particular, micro-Doppler radar has been widely developed to perform certain tasks, such as detection of buried victims in natural disaster, drone system detection, and classification of humans and animals. Further, micro-Doppler radar can also be implemented in medical applications for remote monitoring and examination. This paper proposes a human respiration rate detection system using micro-Doppler radar with quadrature architecture in the industrial, scientific, and medical (ISM) frequency of 5.8 GHz. We use a mathematical model of human breathing to further explore any insights into signal processes in the radar. The experimental system is designed using the USRP B200 mini-module as the main component of the radar and the Vivaldi antennas working at 5.8 GHz. The radar system is integrated directly with the GNU Radio Companion software as the processing part. Using a frequency of 5.8 GHz and USRP output power of 0.33 mW, our proposed method was able to detect the respiration rate at a distance of 2 m or less with acceptable error. In addition, the radar system could differentiate different frequency rates for different targets, demonstrating that it is highly sensitive. We also emphasize that the designed radar system can be used as a portable device which offers flexibility to be used anytime and anywhere.https://www.mdpi.com/1424-8220/21/17/5807micro-Doppler radarbreathing rate detectionVivaldi antenna |
| spellingShingle | Catur Apriono Fathul Muin Filbert H. Juwono Portable Micro-Doppler Radar with Quadrature Radar Architecture for Non-Contact Human Breath Detection Sensors micro-Doppler radar breathing rate detection Vivaldi antenna |
| title | Portable Micro-Doppler Radar with Quadrature Radar Architecture for Non-Contact Human Breath Detection |
| title_full | Portable Micro-Doppler Radar with Quadrature Radar Architecture for Non-Contact Human Breath Detection |
| title_fullStr | Portable Micro-Doppler Radar with Quadrature Radar Architecture for Non-Contact Human Breath Detection |
| title_full_unstemmed | Portable Micro-Doppler Radar with Quadrature Radar Architecture for Non-Contact Human Breath Detection |
| title_short | Portable Micro-Doppler Radar with Quadrature Radar Architecture for Non-Contact Human Breath Detection |
| title_sort | portable micro doppler radar with quadrature radar architecture for non contact human breath detection |
| topic | micro-Doppler radar breathing rate detection Vivaldi antenna |
| url | https://www.mdpi.com/1424-8220/21/17/5807 |
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