Title:
METHOD AND ARRANGEMENT FOR DETECTING AND MEASURING THE PHASE OF PERIODICAL BIOSIGNALS
Document Type and Number:
WIPO Patent Application WO2004047610
Kind Code:
A3
Abstract:
The invention relates to a method and an arrangement for detecting and measuring the phase of periodical biosignals. The aim of the invention is to detect and measure a causal phase response in periodical biosignals, with improved reliability and higher speed compared to conventional methods, simultaneously reducing the computing power required. According to the invention, a state observer is set up in parallel with the analysed biological system. The output variables of the biological system and the observer are evaluated in order to minimise the occurring error. The determined phase of a periodical biosignal can, for example, be used for functional diagnostic purposes.
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Inventors:
HENNING GUENTER (DE)
HUSAR PETER (DE)
PECHER ALFRED (DE)
HUSAR PETER (DE)
PECHER ALFRED (DE)
Application Number:
PCT/EP2003/013355
Publication Date:
March 24, 2005
Filing Date:
November 27, 2003
Export Citation:
Assignee:
UNIV ILMENAU TECH (DE)
HENNING GUENTER (DE)
HUSAR PETER (DE)
PECHER ALFRED (DE)
HENNING GUENTER (DE)
HUSAR PETER (DE)
PECHER ALFRED (DE)
International Classes:
A61B5/04; A61B5/0476; G06F17/00; G06K9/00; A61B; (IPC1-7): G06F17/00
Other References:
LIBERATI D; BERTOLINI L; COLOMBO D C: "Parametric method for the detection of inter- and intrasweep variability in VEP processing", MEDICAL AND BIOLOGICAL ENGINEERING AND COMPUTING, vol. 29, no. 2, March 1991 (1991-03-01), UK, pages 156 - 166, XP001204286, ISSN: 0140-0118
COOPER W S: "USE OF OPTIMAL ESTIMATION THEORY, IN PARTICULAR THE KALMAN FILTER, IN DATA ANALYSIS AND SIGNAL PROCESSING", REVIEW OF SCIENTIFIC INSTRUMENTS, AMERICAN INSTITUTE OF PHYSICS. NEW YORK, US, vol. 57, no. 11, 1 November 1986 (1986-11-01), pages 2862 - 2869, XP000007192, ISSN: 0034-6748
BARTOLI F ET AL: "AN OPTIMAL LINEAR FILTER FOR THE REDUCTION OF NOISE SUPERIMPOSED TO THE EGG SIGNAL", JOURNAL OF BIOMEDICAL ENGINEERING, BUTTERWORTH, GUILDFORD, GB, vol. 5, no. 4, October 1983 (1983-10-01), pages 274 - 280, XP009007609, ISSN: 0141-5425
ARNOLD M ET AL: "ADAPTIVE AR MODELING OF NONSTATIONARY TIME SERIES BY MEANS OF KALMAN FILTERING", IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, IEEE INC. NEW YORK, US, vol. 45, no. 5, May 1998 (1998-05-01), pages 553 - 562, XP000740780, ISSN: 0018-9294
COOPER W S: "USE OF OPTIMAL ESTIMATION THEORY, IN PARTICULAR THE KALMAN FILTER, IN DATA ANALYSIS AND SIGNAL PROCESSING", REVIEW OF SCIENTIFIC INSTRUMENTS, AMERICAN INSTITUTE OF PHYSICS. NEW YORK, US, vol. 57, no. 11, 1 November 1986 (1986-11-01), pages 2862 - 2869, XP000007192, ISSN: 0034-6748
BARTOLI F ET AL: "AN OPTIMAL LINEAR FILTER FOR THE REDUCTION OF NOISE SUPERIMPOSED TO THE EGG SIGNAL", JOURNAL OF BIOMEDICAL ENGINEERING, BUTTERWORTH, GUILDFORD, GB, vol. 5, no. 4, October 1983 (1983-10-01), pages 274 - 280, XP009007609, ISSN: 0141-5425
ARNOLD M ET AL: "ADAPTIVE AR MODELING OF NONSTATIONARY TIME SERIES BY MEANS OF KALMAN FILTERING", IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, IEEE INC. NEW YORK, US, vol. 45, no. 5, May 1998 (1998-05-01), pages 553 - 562, XP000740780, ISSN: 0018-9294
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