Complex signal decomposition and modeling

Details Complex signal decomposition and modeling Complex signal decomposition and modeling

2005-10-18

2005-10-18

Nghiem, Michael (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system

Measured signal processing

C702S070000, C702S071000, C702S073000, C702S074000, C702S190000

Reexamination Certificate

active

06957172

ABSTRACT:
A system, 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. Wavelet analysis, frequency band filtering or other methods may be used to decompose the complex signal into components. A library 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 with reference to the decomposed input signal.

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