Title :
An Improved Self-Adaptive Filter Based on LMS Algorithm for Filtering 50Hz Interference in ECG Signals
Author :
Weiting, Yuan ; Runjing, Zhou
Author_Institution :
Inner Mongolia Univ., Hohhot
Abstract :
In this paper, we firstly introduce three conventional digital filtering methods and analyze their qualities of filtering. Then we use a new method based on self-adaptive digital filter and median filter for their defects, and simulate it. It is demonstrated that not only the noises are successfully restrained, but also the useful information is preserved as much as possible, and the performance of the new method is superior to the others.
Keywords :
electrocardiography; filtering theory; least mean squares methods; median filters; medical signal processing; ECG Signals; LMS algorithm; digital filtering methods; frequency 50 Hz; interference filtering; median filter; self-adaptive filter; Digital filters; Electrocardiography; Filtering algorithms; Finite impulse response filter; Frequency; Information filtering; Information filters; Interference; Least squares approximation; Nonlinear filters; LMS algorithm; Self-adaptive filter; median filter;
Conference_Titel :
Electronic Measurement and Instruments, 2007. ICEMI '07. 8th International Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-4244-1136-8
Electronic_ISBN :
978-1-4244-1136-8
DOI :
10.1109/ICEMI.2007.4351057
