KLT for an ECG Signal

1. How do you signal an ECG?
2. How to remove noise from ECG signal in Matlab?
3. What is the frequency content of an ECG?

How do you signal an ECG?

An electrocardiogram (ECG or EKG) records the electrical signal from the heart to check for different heart conditions. Electrodes are placed on the chest to record the heart's electrical signals, which cause the heart to beat. The signals are shown as waves on an attached computer monitor or printer.

How to remove noise from ECG signal in Matlab?

The sgolayfilt function smoothes the ECG signal using a Savitzky-Golay (polynomial) smoothing filter. x = ecg(500). '; y = sgolayfilt(x,0,5); [M,N] = size(y); Initialize the time scope to view the noisy signal and the filtered signal.

What is the frequency content of an ECG?

Modern ECG machines record ECG signal in the bandpass from 0.05 (or 0.5) Hz to 100 (or 150) Hz as an industry standard.