Method for Extracting Respiration Signal and Respiratory Frequency from Wearable ECG
A breathing signal and breathing frequency technology, applied in the field of breathing detection, can solve problems such as drift, random interference, error, and large deviation of breathing rate, and achieve the effect of small error, high accuracy, and convenience for daily physiological monitoring.
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[0060] The present invention provides a method for extracting breathing signal and breathing frequency from wearable ECG, because the effect of respiration will produce modulation effect on ECG signal, so that the characteristic points of QRS wave group produce more obvious changes, wearable ECG The signal is more susceptible to the interference of the external environment than the ECG signal in the traditional resting state. Therefore, the ECG signal with poor signal quality will be filtered out. The example of the present invention uses the ratio of adjacent QRS wave group features to describe The change trend of the wave group, and the change trend of this wave group is also the change trend of the respiratory wave, so as to extract the respiratory wave and calculate the respiratory frequency.
[0061] see figure 2 , an embodiment of the present invention provides a method for extracting respiratory waves and evaluating respiratory rate based on wearable ECG signals, which...
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