Extraction of a low-amplitude component orthogonal to the recorded cardiac impulse; Biology and Medicine; Vol. 6, iss. 1
| Parent link: | Biology and Medicine Vol. 6, iss. 1.— 2014.— [BM-013-14, 5 p.] |
|---|---|
| Autres auteurs: | , , , |
| Résumé: | Title screen The problem of the cardiac signal extraction from a low-amplitude high-frequency component invisible on conventionalelectrocardiography (ECG) is considered. For this purpose, the original ECG model, which includes a highamplitudecomponent, a low-amplitude component, and random noise, is used. We have proposed the method toextract the orthogonal high-amplitude and low-amplitude components from the recorded cardiac pulse sequence inthe form of the first two components of the matrix singular decomposition composed of a set of cardiac pulses. Incontrast to Simson’s method, the proposed method does not assume cardiac signal averaging over a large (aboutseveral hundred cardiac pulses) sequence as well as the averaged signal filtering. The low-amplitude component isextracted from a short (about 10 s) ECG recording. We have used a mathematical model to examine the stability of theproposed method to the correlation of the high-amplitude and low-amplitude components of the cardiac signal as wellas to the influence of random noise. It is shown that the high-amplitude component is steadily extracted in the entirerange of the change in noise level and correlation of the regular components of the cardiac signal. At the same time,the low-amplitude component is significantly distorted when the pair correlation coefficient with the high-amplitudecomponent is greater than 0.2 or noise level is greater than 0.4. |
| Langue: | anglais |
| Publié: |
2014
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| Sujets: | |
| Accès en ligne: | http://www.biolmedonline.com/Articles/Vol6_1_2014/BM-013-14_Grigoriev.pdf |
| Format: | Électronique Chapitre de livre |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=642286 |
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| 200 | 1 | |a Extraction of a low-amplitude component orthogonal to the recorded cardiac impulse |f D. K. Avdeeva [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 11 tit.] | ||
| 330 | |a The problem of the cardiac signal extraction from a low-amplitude high-frequency component invisible on conventionalelectrocardiography (ECG) is considered. For this purpose, the original ECG model, which includes a highamplitudecomponent, a low-amplitude component, and random noise, is used. We have proposed the method toextract the orthogonal high-amplitude and low-amplitude components from the recorded cardiac pulse sequence inthe form of the first two components of the matrix singular decomposition composed of a set of cardiac pulses. Incontrast to Simson’s method, the proposed method does not assume cardiac signal averaging over a large (aboutseveral hundred cardiac pulses) sequence as well as the averaged signal filtering. The low-amplitude component isextracted from a short (about 10 s) ECG recording. We have used a mathematical model to examine the stability of theproposed method to the correlation of the high-amplitude and low-amplitude components of the cardiac signal as wellas to the influence of random noise. It is shown that the high-amplitude component is steadily extracted in the entirerange of the change in noise level and correlation of the regular components of the cardiac signal. At the same time,the low-amplitude component is significantly distorted when the pair correlation coefficient with the high-amplitudecomponent is greater than 0.2 or noise level is greater than 0.4. | ||
| 461 | |t Biology and Medicine | ||
| 463 | |t Vol. 6, iss. 1 |v [BM-013-14, 5 p.] |d 2014 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 701 | 1 | |a Avdeeva |b D. K. |c specialist in the field of non-destructive testing |c Professor of Tomsk Polytechnic University, Doctor of technical sciences |f 1943- |g Diana Konstantinovna |3 (RuTPU)RU\TPU\pers\33062 | |
| 701 | 1 | |a Vylegzhanin |b O. N. |c specialist in the field of Informatics and computer engineering |c associate Professor of Tomsk Polytechnic University, candidate of chemical Sciences |f 1943- |g Oleg Nikolaevich |3 (RuTPU)RU\TPU\pers\34850 | |
| 701 | 1 | |a Yuzhakova |b M. A. |c Linguist |c Senior Lecturer of Tomsk Polytechnic University |f 1980- |g Maria Aleksandrovna |3 (RuTPU)RU\TPU\pers\31174 |9 15370 | |
| 701 | 1 | |a Grigoriev |b M. G. |c specialist in the field of non-destructive testing |c Engineer of Tomsk Polytechnic University |f 1990- |g Mikhail Georgievich |3 (RuTPU)RU\TPU\pers\32606 | |
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