METHOD OF ANALYSING MULTIPLE FREQUENCY SIGNALS CONTAINING HIDDEN PERIODICITY Russian patent published in 2010 - IPC G01R23/16 

FIELD: physics.

SUBSTANCE: signal analysis method is carried out using continued C-fractions by measuring the signal at equally-spaced out time intervals. The signal is transmitted from the analysed signal sensor of a control device to unit 1 - continued C-fraction identifier, in which signal values x(k) are processed using a formula: until the stopping rule is satisfied, where α_-1(n)=δ(n) is a Dirac delta function, α₀(n)=x(n) is the signal measurement, m=1,2,3,…, n=0,1,2,…, with subsequent reconstruction of the predictive signal model in form of hidden periodicity.

EFFECT: simple and faster signal analysis, diagnosis, monitoring and control.

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