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Patent Searching and Data


Title:
COMPLEX SIGNAL DECOMPOSITION AND MODELING
Document Type and Number:
WIPO Patent Application WO2001067623
Kind Code:
A3
Abstract:
A system (100), method and program product for monitoring a complex signal for ultrasensitive detection of state changes, or for signature recognition and classification is provided. A complex signal is decomposed periodically for empirical modeling (106). Wavelet analysis, frequency band filtering or other methods (102) may be used to decompose the complex signal into components. A library (104) of signature data may be referenced for selection of a recognized signature in the decomposed complex signal. The recognized signature may indicate data being carried in the complex signal. Estimated signal data may be generated for determination of an operational state of a monitored process or machine using a statistical hypothesis test (112) with reference to the decomposed input signal.

Inventors:
WEGERICH STEPHAN W
Application Number:
PCT/US2001/007490
Publication Date:
February 28, 2002
Filing Date:
March 09, 2001
Export Citation:
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Assignee:
SMARTSIGNAL CORP (US)
International Classes:
G05B23/02; G01R13/00; G05B13/02; G06F15/00; G06F19/00; G06K9/00; H04B1/00; H04B17/00; H04B; (IPC1-7): G06F15/00
Foreign References:
US5774379A1998-06-30
US5757309A1998-05-26
US5784285A1998-07-21
US5495168A1996-02-27
US5886913A1999-03-23
US6076088A2000-06-13
Other References:
See also references of EP 1264412A4
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