FFT averaging of multichannel BCG signals from bed mattress sensor to improve estimation of heart beat interval

Juha M. Kortelainen; Jussi Virkkala

doi:10.1109/IEMBS.2007.4353894

FFT averaging of multichannel BCG signals from bed mattress sensor to improve estimation of heart beat interval

Finnish Institute of Occupational Health (FIOH)

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

32 Citations (Scopus)

Abstract

A multichannel pressure sensing Emfit foil was integrated to a bed mattress for measuring ballistocardiograph signals during sleep. We calculated the heart beat interval with cepstrum method, by applying FFT for short time windows including pair of consequent heart beats. We decreased the variance of FFT by averaging the multichannel data in the frequency domain. Relative error of our method in reference to electrocardiograph RR interval was only 0.35% for 15 night recordings with six normal subjects, when 12% of data was automatically removed due to movement artifacts. Background motivation for this work is given from the studies applying heart rate variability for the sleep staging.

Original language	English
Title of host publication	29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Publisher	IEEE Institute of Electrical and Electronic Engineers
Pages	6686-6689
Number of pages	4
ISBN (Electronic)	978-1-4244-0788-0
ISBN (Print)	978-1-4244-0787-3
DOIs	https://doi.org/10.1109/IEMBS.2007.4353894
Publication status	Published - 1 Jan 2007
MoE publication type	Not Eligible
Event	29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society - Lyon, France Duration: 22 Aug 2007 → 26 Aug 2007

Conference

Conference	29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Country/Territory	France
City	Lyon
Period	22/08/07 → 26/08/07

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10.1109/IEMBS.2007.4353894

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title = "FFT averaging of multichannel BCG signals from bed mattress sensor to improve estimation of heart beat interval",

abstract = "A multichannel pressure sensing Emfit foil was integrated to a bed mattress for measuring ballistocardiograph signals during sleep. We calculated the heart beat interval with cepstrum method, by applying FFT for short time windows including pair of consequent heart beats. We decreased the variance of FFT by averaging the multichannel data in the frequency domain. Relative error of our method in reference to electrocardiograph RR interval was only 0.35% for 15 night recordings with six normal subjects, when 12% of data was automatically removed due to movement artifacts. Background motivation for this work is given from the studies applying heart rate variability for the sleep staging.",

author = "Kortelainen, {Juha M.} and Jussi Virkkala",

year = "2007",

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doi = "10.1109/IEMBS.2007.4353894",

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booktitle = "29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society",

publisher = "IEEE Institute of Electrical and Electronic Engineers",

address = "United States",

note = "29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society ; Conference date: 22-08-2007 Through 26-08-2007",

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Kortelainen, JM & Virkkala, J 2007, FFT averaging of multichannel BCG signals from bed mattress sensor to improve estimation of heart beat interval. in 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Institute of Electrical and Electronic Engineers, pp. 6686-6689, 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Lyon, France, 22/08/07. https://doi.org/10.1109/IEMBS.2007.4353894

FFT averaging of multichannel BCG signals from bed mattress sensor to improve estimation of heart beat interval. / Kortelainen, Juha M.; Virkkala, Jussi.
29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Institute of Electrical and Electronic Engineers, 2007. p. 6686-6689.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

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AU - Virkkala, Jussi

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N2 - A multichannel pressure sensing Emfit foil was integrated to a bed mattress for measuring ballistocardiograph signals during sleep. We calculated the heart beat interval with cepstrum method, by applying FFT for short time windows including pair of consequent heart beats. We decreased the variance of FFT by averaging the multichannel data in the frequency domain. Relative error of our method in reference to electrocardiograph RR interval was only 0.35% for 15 night recordings with six normal subjects, when 12% of data was automatically removed due to movement artifacts. Background motivation for this work is given from the studies applying heart rate variability for the sleep staging.

AB - A multichannel pressure sensing Emfit foil was integrated to a bed mattress for measuring ballistocardiograph signals during sleep. We calculated the heart beat interval with cepstrum method, by applying FFT for short time windows including pair of consequent heart beats. We decreased the variance of FFT by averaging the multichannel data in the frequency domain. Relative error of our method in reference to electrocardiograph RR interval was only 0.35% for 15 night recordings with six normal subjects, when 12% of data was automatically removed due to movement artifacts. Background motivation for this work is given from the studies applying heart rate variability for the sleep staging.

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DO - 10.1109/IEMBS.2007.4353894

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SN - 978-1-4244-0787-3

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BT - 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society

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T2 - 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society

Y2 - 22 August 2007 through 26 August 2007

ER -

FFT averaging of multichannel BCG signals from bed mattress sensor to improve estimation of heart beat interval

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