Journal of Biomedical Engineering Research (대한의용생체공학회:의공학회지)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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The Study of EEG Signal Display as a Multirate Sampling Problem

멀티레이터 샘플링 문제로서의 뇌파신호 디스플레이에 관한 연구

  • 최한고 (전자제어공학과, 금오공과대학교)
  • Published : 1996.06.01
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Abstract

The display of biological signals in raster scan monitors often involves a multirate sampling operation which consists of decimation .and interpolation. All electroencephalouaphic (EEG) samples of 10 to 30 seconds (2, 500 to 7, 500 samples at 250[Hz] sampling frequency) must be displayed in the computer screen to keep the aspect ratio of the paper polygraph output. Since the current afrorclable display technology Plots at most 2, 000 Pixels Per row, sDme signal samples need to be discarde4 This Paper studies methods to perform this operation characterizing them from the signal processing viewpoint and compares the display quality among several decimation techniques. Experimental results show that a nonlinear operation such as the peak detection method could be preferable to the canonical linear filtering to reduce aliasing.

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References

  1. IEEE Trans. on ASSP v.ASSP-23 no.5 A novel implementation for narrowband FIR digital filters Rabiner, L.R.;Crochere, R.E.
  2. Multirate digital signal processing Crochere, R.E.;Rabiner, L.R.
  3. Digital signal processing Roberts, R.A.;Mullis, C.T.
  4. Digital Filtering : An introduction Cunningham, E.P.
  5. IEEE Trans. on Biomed. Eng. v.BME-33 no.6 Design and implementation of linear phase FIR filters for biological signal processing Principe, J.C.;Smith, J.R.
  6. IEEE trans. Circuit Theory v.CT-19 Chebyshev approximation for nonrecursive digital filters with linear phase Parks, T.W.;McClellan, J.H.
  7. Computers and Biomedical Research v.17 Recognition of noisy peaks in ECG waveforms Skordalakis, E.
  8. IEEE Trans. on Biomedical Engineering v.BME-33 no.10 SAMICOS-A sleep analyzing microcomputer system Principe, J.C.;Smith, J.R.