ANALYSIS OF VITAL SIGNS MONITORING USING AN IR-UWB RADAR
ANALYSIS OF VITAL SIGNS MONITORING USING AN IR-UWB RADAR
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DOI：
10.2528/pier09120302
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发表时间：
2010-01-01
影响因子：
6.7
通讯作者：
Villarino, R.
中科院分区：
文献类型：
--
作者：
Lazaro, A.;Girbau, D.;Villarino, R.
超宽带（UWB）技术是无线体网领域中一种新的、实用的、安全的技术。本文重点介绍了估计生命体征的可行性-特别是呼吸率和心跳频率从频谱记录的波形，使用脉冲无线电（IR）UWB雷达。为此，开发了一个分析模型来执行和解释光谱分析。呼吸和心脏信号之间的谐波和互调的解决。已经进行了仿真，以证明它们如何影响生命体征的检测，并分析脉搏波形的影响。还提出了用于消除呼吸谐波的滤波器以改善心率检测。实验结果在不同的情况下，这表明所提出的技术用于确定呼吸和心跳速率的准确性。事实证明，IR-UWB雷达可以满足典型生物医学应用的要求，例如无创心脏和呼吸率监测
Ultra-wide Band (UWB) technology is a new, useful and safe technology in the field of wireless body networks. This paper focuses on the feasibility of estimating vital signs - specifically breathing rate and heart beat frequency from the spectrum of recorded wave forms, using an impulse-radio (IR) UWB radar. To this end, ananalytical model is developed to perform and interpret the spectral analysis. Both the harmonics and the intermodulation between respiration and heart signals are addressed. Simulations have been performed to demonstrate how they affect the detection of vital signs and also to analyze the influence of the pulse waveform. A filter to cancel out breathing harmonics is also proposed to improve heart rate detection. The results of the experiments are presented under different scenarios which demonstrate the accuracy of the proposed technique for determining respiration and heart beat rates. It has been shown that an IR-UWB radar can meet the requirements of typical biomedical applications such as non-invasive heart and respiration rate monitoring