Muehlsteff J, Thijs J A J, Pinter R
Philips Research, Aachen, Germany.
Conf Proc IEEE Eng Med Biol Soc. 2006;2006:547-50. doi: 10.1109/IEMBS.2006.260170.
This paper investigates a two-channel Doppler radar sensor that can provide information on the direction of movement. The radar sensor has the advantage of non-invasive, contactless measurements, compared to ultrasound. From theoretical considerations and a working model, we deduce a criterion for extracting points of no movement in a heart cycle. We propose to use this criterion to characterize the heart motion phases, beyond looking at signal morphology only. In contrast to the ECG, this technique provides easy and comfortable access to information about the mechanical activity of the heart.
本文研究了一种能够提供运动方向信息的双通道多普勒雷达传感器。与超声波相比，该雷达传感器具有非侵入式、非接触式测量的优势。通过理论分析和工作模型，我们推导出了一种在心动周期中提取静止点的准则。我们建议使用该准则来表征心脏运动阶段，而不仅仅是观察信号形态。与心电图不同，该技术能够轻松、舒适地获取有关心脏机械活动的信息。
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