A Comparative Study on Removal of Noise in ECG Signal Using Different Filters

The ECG an instrument, which records the electrical activity of heart. Electrical signals from the heart characteristically precede the normal mechanical function and monitoring of these signal has great clinical significance. ECG are used in catherization laboratories, coronary care units and for routine diagnostic applications in cardiology.
Noise is an unwanted problem to achieve spike free ECG signal. To remove this problem we use various filter. In this paper we take an overview of all filters which remove noise from ECG signal.
Filter used like FIR, smoothing, Golay , Gaussian etc. in this paper we survey on all type of filter which is used in to achieve noise free signal. Removing motion artifacts from an electrocardiogram (ECG) is one of the important issues to be considered during real-time heart rate measurements in telemetric health care. However, motion artifacts are part of the transient baseline change caused by the electrode motions that are the results of a subject's movement.