System for detection and estimation of periodic patterns in...

Details System for detection and estimation of periodic patterns in... System for detection and estimation of periodic patterns in...

2004-07-08

2009-10-27

Mai, Tan V (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

C708S426000

Reexamination Certificate

active

07610324

ABSTRACT:
A method for the detection and estimation of periodicities in noisy signals. First the signal is sampled and preprocessed in a discrete succession of equal periods. Then, short term characteristics vectors are generated for each period. The short term characteristics vectors are then grouped into sets, followed by the obtainment of at least one representative vector for each set. Periodic structures are estimated using the representative vectors. In a preferred embodiment, the short term characteristics are the the short term spectra of the signal. Practically, an autocorrelation matrix is constructed to assess autocorrelation along a diagonal.

REFERENCES:
patent: 5596371 (1997-01-01), Pakhchyan et al.
patent: 2004/0008160 (2004-01-01), Etheridge et al.

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