Noncontact Measurement of Heartbeat of Humans and Chimpanzees Using Millimeter-Wave Radar With Topology Method

被引：10
作者：
Iwata, Itsuki [1 ]
Sakamoto, Takuya [1 ]
Matsumoto, Takuya [2 ]
Hirata, Satoshi [3 ,4 ]
机构：
[1] Kyoto Univ, Grad Sch Engn, Dept Elect Engn, Kyoto 6158510, Japan
[2] Shinshu Univ, Fac Sci, Dept Elect Engn, Nagano 3908621, Japan
[3] Kyoto Univ, Wildlife Res Ctr, Kyoto 6068203, Japan
[4] Kyoto Univ, Wildlife Res Ctr, Kumamoto Sanctuary, Kumamoto 8693201, Japan
来源：
IEEE SENSORS LETTERS | 2023年 / 7卷 / 11期
关键词：
Radar; Power harmonic filters; Heart beat; Harmonic analysis; Cutoff frequency; Topology; Particle measurements; Sensor signal processing; chimpanzees; heart interbeat interval; millimeter-wave radar; noncontact measurement; topology method; RESPIRATORY MEASUREMENT; CHEST-WALL; RECONSTRUCTION;
D O I：
10.1109/LSENS.2023.3322287
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This letter proposes a method to determine the filter parameters required for the topology method, which is a radar-based noncontact method for the measurement of heart interbeat intervals. The effectiveness of the proposed method is evaluated by performing radar measurements involving both human participants and chimpanzee subjects. The proposed method is designed to enable the setting of the filter cutoff frequency to eliminate respiratory components while maintaining the higher harmonics of the heartbeat components. Measurements using a millimeter-wave radar system and a reference contact-type electrocardiogram sensor demonstrate that the smallest errors that occur when measuring heart interbeat intervals using the proposed method can be as small as 4.43 and 2.55 ms for humans and chimpanzees, respectively. These results indicate the possibility of using noncontact physiological measurements to monitor both humans and chimpanzees.
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页数：4
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