Low-pass differentiators for biological signals with known spectra: application to ECG signal processing.
other · Level V
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- Record sourced from PubMed, PMID 2338356.
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Abstract
Digital low-pass filtering and differentiation (LPD) are useful in real-time processing of many biomedical signals. A general method is presented for determining the coefficients of a differentiator that maximizes the signal-to-noise ratio or minimizes the error between actual and ideal LPD filters, when signal and noise spectra are known. Several examples of digital filters suitable for QRS complex and P-T wave processing in ECG are presented.
Medical subject headings
- Electrocardiography
- Models, Cardiovascular
- Signal Processing, Computer-Assisted