The realization of tracking power-line interference adaptive coherent model base on part FFT
Yu, C.; Li, G.; Lin, L.
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi 24(4): 780-784
2007
ISSN/ISBN: 1001-5515 PMID: 17899744 Document Number: 614834
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.