Research output: Contribution to journal › Conference article › peer-review
A minimization problem for the sum of weighted convolutions' difference and a novel approach to the inverse problem of ECG- and PPG-signals recovering. / Kel'Manov, A.; Khamidullin, S.; Mikhailova, L. et al.
In: Journal of Physics: Conference Series, Vol. 2092, No. 1, 012007, 20.12.2021.Research output: Contribution to journal › Conference article › peer-review
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TY - JOUR
T1 - A minimization problem for the sum of weighted convolutions' difference and a novel approach to the inverse problem of ECG- and PPG-signals recovering
AU - Kel'Manov, A.
AU - Khamidullin, S.
AU - Mikhailova, L.
AU - Ruzankin, P.
N1 - Funding Information: Acknowledgments. The study was carried out within the framework of the state contract of the Sobolev Institute of Mathematics (projects no. 0314-2019-0015 and 0314-2019-0008), and was supported by the Russian Foundation for Basic Research, project no. 19-07-00397. Publisher Copyright: © 2021 Institute of Physics Publishing. All rights reserved.
PY - 2021/12/20
Y1 - 2021/12/20
N2 - In this paper, we consider an unstudied problem of approximation of an observed pulse train by by a quasiperiodic signal generated by a pulse with a given pattern (reference) shape. The quasiperiodicity allows variation of time intervals between repetitions of the pattern pulse, as well as nonlinear expansions of the pattern in time. Such inverse problems are common in electrocardiogram (ECG) and photoplethysmogram (PPG) features extraction. The following two variants of the problem are considered. In the first variant, the number of the pulse repetitions is unknown, while in the second one, that number is given. The polynomial-time solvability of the both variants of the problem is constructively proved.
AB - In this paper, we consider an unstudied problem of approximation of an observed pulse train by by a quasiperiodic signal generated by a pulse with a given pattern (reference) shape. The quasiperiodicity allows variation of time intervals between repetitions of the pattern pulse, as well as nonlinear expansions of the pattern in time. Such inverse problems are common in electrocardiogram (ECG) and photoplethysmogram (PPG) features extraction. The following two variants of the problem are considered. In the first variant, the number of the pulse repetitions is unknown, while in the second one, that number is given. The polynomial-time solvability of the both variants of the problem is constructively proved.
UR - http://www.scopus.com/inward/record.url?scp=85124027942&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/2092/1/012007
DO - 10.1088/1742-6596/2092/1/012007
M3 - Conference article
AN - SCOPUS:85124027942
VL - 2092
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 012007
T2 - 11th International Scientific Conference and Young Scientist School on Theory and Computational Methods for Inverse and Ill-posed Problems
Y2 - 26 August 2019 through 4 September 2019
ER -
ID: 35428111