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PubMed · 7654947

Integrating the ECG power-line interference removal methods with rule-based system.

N Kumaravel·A Senthil·K S Sridhar·N Nithiyanandam
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Abstract

The power-line frequency interference in electrocardiographic signals is eliminated to enhance the signal characteristics for diagnosis. The power-line frequency normally varies +/- 1.5 Hz from its standard value of 50 Hz. In the present work, the performances of the linear FIR filter, Wave digital filter (WDF) and adaptive filter for the power-line frequency variations from 48.5 to 51.5 Hz in steps of 0.5 Hz are studied. The advantage of the LMS adaptive filter in the removal of power-line frequency interference even if the frequency of interference varies by +/- 1.5 Hz from its normal value of 50 Hz over other fixed frequency filters is very well justified. A novel method of integrating rule-based system approach with linear FIR filter and also with Wave digital filter are proposed. The performances of Rule-based FIR filter and Rule-based Wave digital filter are compared with the LMS adaptive filter.

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AlgorithmsElectrocardiographyEvaluation Studies as TopicHumansSignal Processing, Computer-AssistedComparative StudyJournal Article

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N Kumaravel, A Senthil, K S Sridhar, N Nithiyanandam. 1995. Integrating the ECG power-line interference removal methods with rule-based system.. https://pubmed.ncbi.nlm.nih.gov/7654947/

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