The time-frequency plane Wiener filter enhances ECG signal averaging, allowing for improved noise reduction and analysis of dynamic cardiac events with fewer beats.
Background: The signal‐averaged ECG is a widely used and accepted technique for analysis of low‐level cardiac signals. This article reviews a new and enhanced form of ECG signal averaging: the time‐frequency plane Wiener (TFPW) filter. Methods: The TFPW filter accelerates the process of noise reduction. It facilitates use of signal averaging in settings previously unexplored with the technique, where a limited number of beats may be available. Conclusion: Example applications of the TFPW filter include improved analysis of ventricular late potentials and analysis of dynamic events, such as transient ischemia.
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Paul Lander (1996) studied this question.
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