Estimation of rhythmic variations in R-R interval using nonlinear energy operator during sleep

Author

Han, Joo-Man ; Park, Hae-Jeong ; Park, Kwang Suk ; Jeong, Do-Un

Author_Institution

Interdisciplinary Program, Seoul Nat. Univ., South Korea

fYear

1998

fDate

29 Oct-1 Nov 1998

Firstpage

151

Abstract

The nonlinear energy operator (NEO) is usually used for the estimation of energy content of linear oscillator. A spike having high magnitude and high gradient appears with high value with this operation. To distinguish positive spike from negative spike, we suggest the modified nonlinear energy operator (MNEO) for the analysis of R-R interval variation during sleep. QRS complex of ECG waveform is detected with this MNEO and the statistical properties of R-R interval in each sleep state is analyzed

Keywords

electrocardiography; feature extraction; gradient methods; mathematical operators; medical signal detection; medical signal processing; moving average processes; sleep; waveform analysis; ECG waveform; ECG waveforms; QRS complex; R-R interval; feature extraction; gradient descent method; modified operator; moving average mode; negative spike; nonlinear energy operator; positive spike; rhythmic variations estimation; sleep; spike detection; statistical properties; thresholding; Biomedical engineering; Databases; Educational institutions; Electrocardiography; Electronic mail; Engineering in medicine and biology; Frequency; Power engineering and energy; Psychology; Sleep;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1998. Proceedings of the 20th Annual International Conference of the IEEE

Conference_Location

Hong Kong

ISSN

1094-687X

Print_ISBN

0-7803-5164-9

Type

conf

DOI

10.1109/IEMBS.1998.745859

Filename

745859