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Analog
17 天
基于MUSIC的算法利用腕上光电容积 脉搏波(PPG)信号提供按需心率估算
心率(HR)监测是许多现有可穿戴产品和临床设备的关键特性。这些设备一般测量光电容积脉搏波(PPG)信号,为获得该信号,须利用LED照射人体皮肤,然后用光电二极管测量血流引起的反射光强度变化。PPG信号形态与动脉血压(ABP)波形相似,这使得该信号成为受科学 ...
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