Research of Filters Design for ECG Signal Processing

ECG signal of body surface is always interfered by different noises.In order to get undistorted original ECG,filtering is necessary before doing diagnosis.In this paper the design of different filters used in ECG signal processing is discussed,including low\|pass filter,high\|pass filter,notch filter,and “two\|in\|one” filter that can remove both the power\|line interference and baseline drift at the same time.