Removal of noise from electrocardiogram using digital FIR and IIR filters with various methods

Kumar, Krishan; Yazdanpanah, Babak; Kumar, Prashant

doi:10.1109/iccsp.2015.7322780

Cited by 35 publications

(8 citation statements)

References 7 publications

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“…Kumar et al [28], have studied this approach with variations of FIR and IIR digital filter designs, and have reported that by using FIR filters of 56 coefficients with the a Kaiser window, presented the best performance in comparison to orders FIR, as well as IIR filter designs. We have explored this possible approach, and determined that by increasing the order number (coefficients), e.g., 100, there was no significant denoising performance improvement.…”

Section: Discussionmentioning

confidence: 99%

Data-Driven ECG Denoising Techniques for Characterising Bipolar Lead Sets along the Left Arm in Wearable Long-Term Heart Rhythm Monitoring

et al. 2017

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Abnormal heart rhythms (arrhythmias) are a major cause of cardiovascular disease and death in Europe. Sudden cardiac death accounts for 50% of cardiac mortality in developed countries; ventricular tachycardia or ventricular fibrillation is the most common underlying arrhythmia. In the ambulatory population, atrial fibrillation is the most common arrhythmia and is associated with an increased risk of stroke and heart failure, particularly in an aging population. Early detection of arrhythmias allows appropriate intervention, reducing disability and death. However, in the early stages of disease arrhythmias may be transient, lasting only a few seconds, and are thus difficult to detect. This work addresses the problem of extracting the far-field heart electrogram signal from noise components, as recorded in bipolar leads along the left arm, using a data driven ECG (electrocardiogram) denoising algorithm based on ensemble empirical mode decomposition (EEMD) methods to enable continuous non-invasive monitoring of heart rhythm for long periods of time using a wrist or arm wearable device with advanced biopotential sensors. Performance assessment against a control denoising method of signal averaging (SA) was implemented in a pilot study with 34 clinical cases. EEMD was found to be a reliable, low latency, data-driven denoising technique with respect to the control SA method, achieving signal-to-noise ratio (SNR) enhancement to a standard closer to the SA control method, particularly on the upper arm-ECG bipolar leads. Furthermore, the SNR performance of the EEMD was improved when assisted with an FFT (fast Fourier transform ) thresholding algorithm (EEMD-fft).

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Section: Discussionmentioning

confidence: 99%

Data-Driven ECG Denoising Techniques for Characterising Bipolar Lead Sets along the Left Arm in Wearable Long-Term Heart Rhythm Monitoring

et al. 2017

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“…Butterworth, Bessel, Chebyshev, and elliptic lters are classical lters that model and govern signal ltering and processing in communications and computing systems [152][153][154]. These fundamental lters are broadly used in applications such as noise reduction, spectral analysis, and signal synthesis [155][156][157][158]. Photonic resonators offer a powerful solution to realize these lters in optical domain [159][160][161].…”

Section: Introductionmentioning

confidence: 99%

Advanced Classical Optical Filters with Three Waveguide Coupled Sagnac Loop Reflectors

Arianfard¹,

Wu²,

Juodkazis³

et al. 2021

Preprint

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We theoretically investigate advanced multi-functional integrated photonic filters formed by three waveguide coupled Sagnac loop reflectors (3WC-SLRs). By tailoring the coherent mode interference, the spectral response of the 3WC-SLR resonators is engineered to achieve diverse filtering functions with high performance. These include optical analogues of Fano resonances that yield ultrahigh spectral extinction ratios (ERs) and slope rates, resonance mode splitting with high ERs and low free spectral ranges, and classical Butterworth, Bessel, Chebyshev, and elliptic filters. A detailed analysis of the impact of the structural parameters and fabrication tolerances is provided to facilitate device design and optimization. The requirements for practical applications are also considered. These results theoretically verify the effectiveness of using 3WC-SLR resonators as multi-functional integrated photonic filters for flexible spectral engineering in diverse applications.

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“…Butterworth, Bessel, Chebyshev, and elliptic filters are classical filters that model and govern signal filtering and processing in communications and computing systems [152][153][154]. These fundamental filters are broadly used in applications such as noise reduction, spectral analysis, and signal synthesis [155][156][157][158]. Photonic resonators offer a powerful solution to realize these filters in optical domain [159][160][161].…”

Section:  Introductionmentioning

confidence: 99%

Advanced Three Waveguide Sagnac Loop Reflectors for High Performance Optical Filters

Moss¹

2021

Preprint

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We theoretically investigate advanced multi-functionalintegrated photonic filters formed by three waveguide coupledSagnac loop reflectors (3WC-SLRs). By tailoring the coherentmode interference, the spectral response of the 3WC-SLRresonators is engineered to achieve diverse filtering functionswith high performance. These include optical analogues of Fanoresonances that yield ultrahigh spectral extinction ratios (ERs)and slope rates, resonance mode splitting with high ERs and lowfree spectral ranges, and classical Butterworth, Bessel,Chebyshev, and elliptic filters. A detailed analysis of the impactof the structural parameters and fabrication tolerances isprovided to facilitate device design and optimization. Therequirements for practical applications are also considered.These results theoretically verify the effectiveness of using 3WCSLRresonators as multi-functional integrated photonic filters forflexible spectral engineering in diverse applications.

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Removal of noise from electrocardiogram using digital FIR and IIR filters with various methods

Cited by 35 publications

References 7 publications

Data-Driven ECG Denoising Techniques for Characterising Bipolar Lead Sets along the Left Arm in Wearable Long-Term Heart Rhythm Monitoring

Data-Driven ECG Denoising Techniques for Characterising Bipolar Lead Sets along the Left Arm in Wearable Long-Term Heart Rhythm Monitoring

Advanced Classical Optical Filters with Three Waveguide Coupled Sagnac Loop Reflectors

Advanced Three Waveguide Sagnac Loop Reflectors for High Performance Optical Filters

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