Noise removal method with noise IMF (intrinsic mode function) components and electrocardiography signals
An ECG signal, IMF technology, applied in the direction of diagnostic recording/measurement, medical science, sensors, etc., to achieve the effect of reducing the amount of calculation, improving the efficiency, and the method is simple
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[0052] Embodiments of the present invention will be specifically described below in conjunction with the accompanying drawings.
[0053] figure 1 It is a flowchart of a preferred embodiment of the electrocardiographic signal denoising method of the present invention, such as figure 1 As shown, the electrocardiographic signal denoising method comprises the following steps:
[0054] S100, performing EEMD decomposition on the noisy ECG signal;
[0055] S200. Determine the serial number of the boundary point between the noisy IMF and the signal IMF according to the statistical characteristics of the noise;
[0056] S300. Combining two different threshold processing methods of double threshold and single threshold to denoise the wavelet threshold and process the noisy IMF component to obtain the IMF component after wavelet threshold processing;
[0057] S400. Reconstruct the IMF component processed by the wavelet threshold and the IMF component of the signal to obtain a denoised...
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