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Signal Processing of ECG Using Matlab

The ECG signal, even rest ECG, is often corrupted by artifacts produced by varies sources of either artificial or biological nature. Main artificial artifacts are power line interference, Impulse noise, Electrostatic potentials and noise of electronic devices. The main biological artifacts are motion artifacts and muscle artifacts (EMG signal) The present work introduces the digital filtering method to cope with the noise artifacts in the ECG signal. The ECG lead-II signal is taken. The butterworth IIR filter and FIR type1 filters are applied on the ECG signal. The basic bandwidth used for the ECG monitoring is from 0 .5 Hz to 100 Hz.