DocumentCode
3393344
Title
Late potentials and the improvement of signal-to-noise ratio in nonstationary noise
Author
Sornmo, Leif
Volume
2
fYear
1995
fDate
20-23 Sep 1995
Firstpage
895
Abstract
An “instantaneous” optimal filter is presented for improvement of the signal-to-noise ratio in averaged ECGs. The filter is designed for the case when the noise level varies from beat to beat. Simulation results indicate that a better performance is achieved by the new filter when compared to a similar filter designed for processing of beats with identical noise levels. An example is presented in which the filter is applied to the detection of cardiac late potentials
Keywords
electrocardiography; medical signal processing; noise; ECG late potentials; averaged ECGs; beats processing; cardiac late potentials detection; electrodiagnostics; instantaneous optimal filter; nonstationary noise; signal-to-noise ratio improvement; Computational modeling; Electrocardiography; Gaussian noise; Maximum likelihood estimation; Noise cancellation; Noise level; Nonlinear filters; Signal processing; Signal to noise ratio; Wiener filter;
fLanguage
English
Publisher
ieee
Conference_Titel
Engineering in Medicine and Biology Society, 1995., IEEE 17th Annual Conference
Conference_Location
Montreal, Que.
Print_ISBN
0-7803-2475-7
Type
conf
DOI
10.1109/IEMBS.1995.579258
Filename
579258
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