| 非接触生物雷达基于自适应滤波的心跳信号检测 |
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| 引用本文： | 张华,路国华,荆西京,王华,吕昊,焦腾,张扬,于霄,张骁,张鹏飞,薛慧君,王健琪.非接触生物雷达基于自适应滤波的心跳信号检测[J].医疗卫生装备,2012,33(1):8-9,36. |
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| 作者姓名： | 张华 路国华 荆西京 王华 吕昊 焦腾 张扬 于霄 张骁 张鹏飞 薛慧君 王健琪 |
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| 作者单位： | 第四军医大学生物医学工程学院电子学教研室,西安,710032 |
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| 基金项目： | 国家自然科学基金重点项目，军队扩试项目(2010-KS-01):陕西省攻关项目 |
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| 摘 要： | 目的:从生物雷达非接触检测到的呼吸和心跳的混合信号中有效地分离出心跳信号。方法:利用基于RLS算法的自适应噪声抵消器,提出一种分离心跳信号和呼吸信号的方法。结果:采用基于RLS算法的自适应抵消器能够分离出心跳信号,其心率与从心电信号获得的心率具有很强相关性(γ2=0.95,P<0.000 1)。结论:该文提出的分离心跳信号的方法具有较好的实用性,有望实现呼吸和心跳信号的实时分离。
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| 关 键 词： | 生物雷达 非接触 自适应噪声抵消器 RLS算法 |
Non-Contact Measurement of Heartbeat Signal via Doppler Radar Using Adaptive Filtering |
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| ZHANG Hua,LU Guo-hua,JING Xi-jing,WANG Hua,WU Hao,JIAO Teng,ZHANG Yang,YU Xiao,ZHANG Xiao,ZHANG Peng-fei,XUE Hui-jun,WANG Jian-qi.Non-Contact Measurement of Heartbeat Signal via Doppler Radar Using Adaptive Filtering[J].Chinese Medical Equipment Journal,2012,33(1):8-9,36. |
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| Authors: | ZHANG Hua LU Guo-hua JING Xi-jing WANG Hua WU Hao JIAO Teng ZHANG Yang YU Xiao ZHANG Xiao ZHANG Peng-fei XUE Hui-jun WANG Jian-qi |
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| Institution: | (Department of Electronics, School of Biomedical Engineering, the Fourth Military Medical University, Xi＇an 710032, China) |
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| Abstract: | Objective To separate the heartbeat signal from the mixsignal of the respiration and heartbeat,which was measured via contact-free biological radar. Mothods A heartbeat signal separate method was proposed by using recursiveleast square（RLS） algorithm based adaptive noise canceler. Results RLS algorithm based adaptive noise canceler could isolate the heartbeat signal, and there was a strong correlation between the heart rate and heart rate obtained from the ECG signal（T2 = 0.95, P 〈0.000 1）. Conclusion The heartbeat signal separation method present possesses good practicality, which is expected to achieve the real-time separation of respiration and heartbeat signal. |
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| Keywords: | bio-radar non-contact adaptive noise canceler RLS algorithm |
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