High Fidelity MZI-BCG Sensor With Homodyne Demodulation for Unobtrusive HR and BP Monitoring

doi:10.1109/JSEN.2022.3158070

CORC > 西安光学精密机械研究所 > 中国科学院西安光学精密机械研究所 > 瞬态光学技术国家重点实验室

	High Fidelity MZI-BCG Sensor With Homodyne Demodulation for Unobtrusive HR and BP Monitoring
	Yang, Fangang; Xu, Wei; Lyu, Weimin; Tan, Fengze; Yu, Changyuan; Dong, Bo
刊名	IEEE SENSORS JOURNAL
	2022-04-15
卷号	22 期号:8 页码:7798-7807
关键词	Sensors Monitoring Optical fiber sensors Vertical cavity surface emitting lasers Heart rate Couplers Distortion Active homondyne ballistocardiograph blood pressure closed-loop control system heart rate optical fiber Mach-Zehnder interferometer
ISSN号	1530-437X;1558-1748
DOI	10.1109/JSEN.2022.3158070
产权排序	2
英文摘要	An all-optical active homodyne detection aided fiber-optic Mach-Zehnder interferometer (MZI) vital signs monitoring system is proposed and investigated. The active homodyne detection is mainly realized by employing a wavelength-tunable vertical-cavity surface-emitting laser (VCSEL) and automatic closed-loop control system (CLCS). It can effectively maintain the MZI sensor to operate around the quadrature point and successfully eliminate the fading effect of output signal induced by low frequency drift. Therefore, high fidelity and high stableness of the ballistocardiograph (BCG) signal is guaranteed. The results show that according to the Bland-Altman and the confidence ellipse analysis, the heart rate (HR) monitoring performance reveals high accuracy and good consistence. What' more, a multiple linear regression-based blood pressure (BP) estimation model is presented, which shows that the BP is highly correlated with I-J-K complex oriented features, including IJ interval, JK interval and JK amplitude. It indeed offers a potential approach to achieve cuff-less BP estimation merely based on the high-fidelity BCG signal. In conclusion, the proposed MZI-BCG monitoring system is simple to use, and it shows great potential in future unobtrusive cardiac monitoring both in home and hospital.
语种	英语
出版者	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
WOS记录号	WOS:000803129500042
内容类型	期刊论文
源URL	[http://ir.opt.ac.cn/handle/181661/95999]
专题	西安光学精密机械研究所_瞬态光学技术国家重点实验室
推荐引用方式 GB/T 7714	Yang, Fangang,Xu, Wei,Lyu, Weimin,et al. High Fidelity MZI-BCG Sensor With Homodyne Demodulation for Unobtrusive HR and BP Monitoring[J]. IEEE SENSORS JOURNAL,2022,22(8):7798-7807.
APA	Yang, Fangang,Xu, Wei,Lyu, Weimin,Tan, Fengze,Yu, Changyuan,&Dong, Bo.(2022).High Fidelity MZI-BCG Sensor With Homodyne Demodulation for Unobtrusive HR and BP Monitoring.IEEE SENSORS JOURNAL,22(8),7798-7807.
MLA	Yang, Fangang,et al."High Fidelity MZI-BCG Sensor With Homodyne Demodulation for Unobtrusive HR and BP Monitoring".IEEE SENSORS JOURNAL 22.8(2022):7798-7807.