Self-adaptive electrocardiosignal power frequency interference filtering method

The invention discloses a self-adaptive electrocardiosignal power frequency interference filtering method. The method comprises the steps that S1, a frequency domain interval where power frequency interference is located is searched for based on an obtained electrocardiosignal; s2, based on the frequency domain interval, utilizing an adaptive notch filtering algorithm to carry out notch filtering processing on the electrocardiosignal corresponding to the frequency interval of the reference frequency to obtain average power after notch filtering; s3, calculating an error value on the basis of the average power after notch filtering and on the basis of the average power after notch filtering; s4, the filter parameter corresponding to the minimum error value is screened out through comparison, and a self-adaptive notch filter corresponding to the input electrocardiosignal and the electrocardiosignal with power frequency interference removed are obtained; according to the electrocardiosignal power frequency inter