Real-Time Heart Rate Detection Method Based on 77 GHz FMCW Radar
Abstract
:1. Introduction
2. Theory
3. Methods
3.1. New Motion Model
3.2. Acquisition of Vital Signs
3.3. Elimination of the RBM Signal
3.4. Elimination of Respiratory Harmonics
4. Results and Discussion
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Segment 1 (3.2 s) | Segment 2 (3.2 s) | Segment 3 (3.2 s) | Segment 4 (3.2 s) | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | 1.5124 | 1.5722 | 3.80 | 1.6625 | 1.5833 | 5.00 | 1.4808 | 1.5222 | 2.72 | 1.4584 | 1.4583 | 0.01 |
2 | 1.4452 | 1.4778 | 2.21 | 1.4461 | 1.4500 | 0.27 | 1.4387 | 1.4167 | 1.56 | 1.4293 | 1.4167 | 0.89 |
3 | 1.6998 | 1.6333 | 4.07 | 1.6437 | 1.5944 | 3.09 | 1.5625 | 1.5222 | 2.65 | 1.4323 | 1.4250 | 0.51 |
4 | 1.4176 | 1.3500 | 5.01 | 1.3715 | 1.3222 | 3.29 | 1.4168 | 1.3278 | 6.70 | 1.3697 | 1.3611 | 0.61 |
5 | 1.5276 | 1.4667 | 4.15 | 1.4638 | 1.4389 | 1.73 | 1.4123 | 1.4111 | 0.08 | 1.4650 | 1.4056 | 3.82 |
6 | 1.3385 | 1.3222 | 1.23 | 1.4446 | 1.3222 | 9.36 | 1.4305 | 1.3167 | 8.65 | 1.3753 | 1.3500 | 1.87 |
7 | 1.4252 | 1.4417 | 1.14 | 1.4235 | 1.4167 | 0.48 | 1.3939 | 1.4000 | 0.44 | 1.4058 | 1.3722 | 2.45 |
8 | 1.4366 | 1.3833 | 3.85 | 1.3347 | 1.3833 | 3.52 | 1.4048 | 1.3944 | 0.74 | 1.3410 | 1.3833 | 3.06 |
9 | 1.4153 | 1.4111 | 0.29 | 1.4159 | 1.4500 | 2.35 | 1.4047 | 1.3792 | 1.85 | 1.3329 | 1.3125 | 1.55 |
10 | 1.6660 | 1.5778 | 5.59 | 1.6342 | 1.5667 | 4.31 | 1.4657 | 1.4917 | 1.74 | 1.3995 | 1.4444 | 3.11 |
11 | 1.3705 | 1.4500 | 5.48 | 1.4312 | 1.4111 | 1.42 | 1.3589 | 1.3667 | 0.57 | 1.3481 | 1.3722 | 1.76 |
12 | 1.4006 | 1.4056 | 0.35 | 1.4104 | 1.4444 | 2.80 | 1.3733 | 1.3889 | 1.28 | 1.4198 | 1.3400 | 5.96 |
13 | 1.4215 | 1.4667 | 3.08 | 1.4167 | 1.4500 | 2.30 | 1.3647 | 1.3889 | 1.74 | 1.3864 | 1.3667 | 1.44 |
14 | 1.3649 | 1.3000 | 4.99 | 1.3854 | 1.3000 | 6.57 | 1.3966 | 1.3056 | 6.97 | 1.3611 | 1.2944 | 5.15 |
15 | 1.4124 | 1.3944 | 1.29 | 1.3930 | 1.3389 | 4.04 | 1.3668 | 1.3333 | 2.51 | 1.3897 | 1.3222 | 5.10 |
/% | 3.10 | /% | 3.37 | /% | 2.68 | /% | 2.55 |
Ref. No. | Detection Distance/m | Acquisition Time/s | Time Window Length/s | |
---|---|---|---|---|
[19] | 0.5 | 75 | 5 | 5 |
[20] | 0.5 | 240 | 15 | <3 |
[21] | Not mentioned | 30 | 2–5 | 3.4 |
[5] | Not mentioned | 60 | 3–5 | 3.5 |
[22] | 1–1.1 | 80–90 | 3, 2, 1.5 | 3.75, 5.58, 7.58 |
[23] | 0.8 | 120 | 8 | 4.2 |
[24] | 1 | 100 | 3 | 4.38 |
[25] | <0.5 | Not mentioned | Not mentioned | 3.65 |
This work | 0.28–0.70 | 12.8 | 3.2 | 2.925 |
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Huang, X.; Ju, Z.; Zhang, R. Real-Time Heart Rate Detection Method Based on 77 GHz FMCW Radar. Micromachines 2022, 13, 1960. https://doi.org/10.3390/mi13111960
Huang X, Ju Z, Zhang R. Real-Time Heart Rate Detection Method Based on 77 GHz FMCW Radar. Micromachines. 2022; 13(11):1960. https://doi.org/10.3390/mi13111960
Chicago/Turabian StyleHuang, Xiaohong, Zedong Ju, and Rundong Zhang. 2022. "Real-Time Heart Rate Detection Method Based on 77 GHz FMCW Radar" Micromachines 13, no. 11: 1960. https://doi.org/10.3390/mi13111960