[Research of adaptive notch filter based on QRD-LS algorithm for power line interference in ECG].
In this paper, an adaptive notch filter based on QRD-LS algorithm for power line interference in ECG is researched. It can automatically eliminate the power line interference in order to improve the signal-to-interference ratio. Furthermore, QLD-LS algorithm, which is recursive least-squares minimization using systolic arrays, is employed to adjust the weight vector. Compared with the adaptive notch filter based on LMS (least mean square) algorithm, it has good robustness. Simulation examples confirm the results. QRD-LS adaptive notch filter has better performance in comparison with LMS method.
Wang
Shuyan
S
Tianjin Key Lab for Advanced Signal Processing, Civil Aviation University of China, Tianjin 300300, China. wsylcq@163.com
Dong
Jian
J
Guan
Xin
X
D000465:Algorithms; D016477:Artifacts; D004562:Electrocardiography / Q000379:methods*; D006801:Humans; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*