Heart Rate Tracking Using a Doppler Radar With the Reassigned Joint Time-Frequency Transform

被引：17

作者：

Lee, Choonghee ^{[1
]}

Yoon, Chiyul ^{[1
]}

Kong, Hyoun-joong ^{[2
,3
]}

Kim, Hee Chan ^{[2
,3
]}

Kim, Youngwook ^{[4
]}

机构：

[1] Seoul Natl Univ, Interdisciplinary Program, Grad Sch, Seoul 110810, South Korea

[2] Seoul Natl Univ, Dept Biomed Engn, Coll Med, Seoul 110810, South Korea

[3] Seoul Natl Univ, Inst Med & Biol Engn, Seoul 110810, South Korea

[4] Calif State Univ Fresno, Dept Elect & Comp Engn, Lyles Coll Engn, Fresno, CA 93740 USA

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2011年 / 10卷

关键词：

Doppler vital sensor; heart rate; joint time-frequency analysis (JTFA); reassigned joint time-frequency analysis; BAND;

D O I：

10.1109/LAWP.2011.2168511

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：

Heart rate variations are tracked using an RF Doppler signal by applying a reassigned joint time-frequency transform (RJTFT). In time-frequency analysis, RJTFT improves the readability of the heart rate on a spectrogram and the heart rate is continuously tracked with it. To verify the result, a heartbeat signal was acquired from a stationary human subject using a Doppler radar unit. The sensor operating at 2.45 GHz was located a distance of 0.5 m from the subject. Using the RJTFT, the heart rate was clearly extracted, thereby improved the readability. A reference heart rate was measured by a photoplethysmography (PPG) device and compared with the heart rate tracked by the RJTFT. The resulting root mean square (RMS) difference of the heart rate measured by the two methods was 5%.

引用

页码：1096 / 1099

页数：4

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