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QUANTIFYING AN EMBEDDED PPG SIGNAL TO NOISE RATIO DEFINITION TO EXPLOIT MEDIATION OF PPG SIGNAL QUALITY ON WEARABLE DEVICES
QUANTIFYING AN EMBEDDED PPG SIGNAL TO NOISE RATIO DEFINITION TO EXPLOIT MEDIATION OF PPG SIGNAL QUALITY ON WEARABLE DEVICES
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机译：量化嵌入式PPG信号的噪声比定义，以探索可穿戴设备上PPG信号质量的中介
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摘要
Wearable data acquisition devices including sensors for detecting physiological signals are used to detect and measure various parameters pertaining to the health of the wearer. Through the use of algorithms, the data detected and measured by said sensors are processed to make inferences used to monitor the health of the wearer. An signal to noise ratio (SNR) calculation is used as a component of the sensitivity analysis of an algorithm. For example, a sleep algorithm will select a block of data, the SNR calculation will be done, with the average quality of the signal as result. The value associated with said signal quality may then be subjected to sensitivity analysis, which will yield a sleep accuracy value which, in turn, is indicative of the minimum signal quality which is required.
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