Design of Frequency-Area Filter to Take away Energy-Line Interference from an ECG Sign
In electrocardiography (ECG) sign processing, a frequency-domain filter could also be used to take away periodic artifacts reminiscent of power-line interference. Essentially the most appropriate filter design to take away power-line interference from an ECG sign is a notch filter, which is a kind of band-stop filter that removes slim frequency bands from a sign. The notch filter is designed primarily based on the frequency of the power-line interference, fo, which is normally at a frequency of 50-60 Hz in america and Europe (Yeo et al., 2017).When designing a notch filter for an ECG sign contaminated with a power-line interference at an interference frequency of fo=60 Hz, a f st, the signal-to-noise ratio ought to be considered when selecting the notch width, which is the vary of frequencies round fo that might be eliminated by the filter (Hauser et al., 2020). Moreover, the filter ought to be designed to have a low passband ripple, as a excessive ripple might trigger sign distortion (Cha et al., 2018). Lastly, the filter’s stopband attenuation ought to be maximized to be able to take away as a lot of the power-line interference as doable (Bhaskar et al., 2019). Cont….
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