The data file ‘ecg.text’ contains ECG signal without noise. Add 50 Hz power line artefact for the given signal data.

a. Plot the above mentioned ECG clean data in time domain using MATLAB

b. Plot the frequency spectrum of the above clean signal using FFT in MATLAB

c. Add 50Hz electrical noise in to the clean signal. Use a 50Hz sinusoid to represent electrical 50Hz hum.

d. Plot the ECG noisy signal using MATLAB in time domain.

e. Plot the ECG noisy signal frequency spectrum using FFT.

Answer 1

[Cris LaPierre]

Try this.