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Complexity analysis of electrocardiographic signals

I Neacsu1, D E Creanga, F M Tufescu

  • 1University Al I Cuza, Faculty of Biology, 20A Bd. Carol I, Iasi, Romania. ineacsu@uaic.ro

General Physiology and Biophysics
|August 19, 2006
PubMed

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Introduction
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Definition
An electrocardiogram (ECG) visualizes the heart's electrical activity by tracing the electrical movement associated with each heartbeat on a graph or monitor. As the heart beats, an electrical wave passes through it, correlating with the cardiac cycle events.
Parts of an ECG
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ECG Interpretation of Rhythms

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The Bode plot is an essential tool in control system analysis, mapping the frequency response of a system through a magnitude plot and a phase plot, both against a logarithmic frequency axis. To construct a Bode plot, consider the transfer function H(ω):
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An electrocardiography (ECG) machine is an essential piece of medical equipment used to monitor the electrical activity of the heart. It operates by detecting small electrical changes on the skin that result from the depolarization of the heart muscle during each heartbeat. However, these signals are in the microvolt range and can be easily overwhelmed by noise or interference.
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