[The realization of tracking power-line interference adaptive coherent model base on part FFT].
Adaptive coherent model can be easily implemented and it can simultaneously reject the power-line interference and baseline wander. But the relevancy of the filter's bandwidth at low-frequency and power-line interference limits its application on ECG filtering. A part fast Fourier transform (FFT) algorithm is presented. It is used to track power-line frequency and adjust the sample frequency. Experiments show that the method still rejects interference efficiently despite of the slow fluctuation of power-line frequency.
Yu
Chao
C
College of Precision Instrument & Opto-electronic Engineering, Tianjin University, Tianjin 300072, China.
Li
Gang
G
Lin
Ling
L
D000465:Algorithms; D004562:Electrocardiography / Q000379:methods*; D005583:Fourier Analysis; D008962:Models, Theoretical; D012815:Signal Processing, Computer-Assisted