Hilbert-Huang Transform Based Doppler Blood Flow Signals Analysis

  title={Hilbert-Huang Transform Based Doppler Blood Flow Signals Analysis},
  author={Dongyu Zhang and Kuanquan Wang and Xiangqian Wu and Bo Huang and Naimin Li},
  journal={2009 2nd International Conference on Biomedical Engineering and Informatics},
In this paper a feature extraction method based on Hilbert-Huang transform (HHT) is proposed in order to investigate the relationship between Doppler ultrasound blood flow signal (DUBFS) of wrist radial artery and the pathological changes of internal organs of human body. Two kinds of empirical model decomposition (EMD) based de-noising methods were compared in data preprocessing progress, and finally EMD interval thresholding (EMD-IT) method was selected to remove the noise of blood flow… CONTINUE READING