Control method and system for filtering out power frequency interference signals
A technology of power frequency interference and control method, applied in medical science, sensors, diagnostic recording/measurement, etc., can solve problems such as submerged signals, ringing effect, signal distortion, etc., to filter out power frequency interference signals, and achieve accurate measurement. , the effect of solving the ringing effect
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[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0028] A control method and control system for filtering power frequency interference signals provided by the present invention, the control method includes: first segment each channel of the multi-channel ECG signal with the QRS wave as the center, and segment the segmented signals Rectification, such nonlinear processing doubles the frequency of the original power frequency interference signal, for example, 50 Hz becomes 100 Hz, thereby improving the accuracy of interference frequency detection; then obtain the heart rate of each channel in the preset section afte...
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