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KMID : 0372919860070010067
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Journal of Biomedical Engineering Research
1986 Volume.7 No. 1 p.67 ~ p.73
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ECG Data Compression and Reconstruction Using a Walsh Transform
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Abstract
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We have implemented data compression and reconstruction by using a fast Walsh transform. The ECG signals were generated by an ECG simulator(KONTRON). The sampling frequency was 480 Hz and the data point number used was 512. In order to eliminate the 60 Hz noise and baseline drift, a digital notch filter
was designed. We obtained a compression ratio of 5 : 1 and at this ratio it was possible to obtain a true diagnosis and an ECG morphology analysis.
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