METHOD OF MEASUREMENT OF MUTUAL DELAY OF SIGNALS Russian patent published in 2015 - IPC G01S5/12 

FIELD: radio engineering, communication.

SUBSTANCE: reference, analytically calculated phase lines are formed and saved for various values of delays with the step Δτ without impact of additive Gaussian noise; by means of two synchronously operating analogue-digital converters the analogue casual signal x(t) noised by Gaussian additive noise and its copy y(t) = x(t-τ3) delayed for the period τ3 are digitized; the mutual spectral density (mutual Fourier spectrum) of the signals x(t) and y(t) is calculated; the phase line of mutual spectral density (mutual phase Fourier spectrum) of the signals x(t) and y(t) is calculated. Using the degree of similarity of the calculated phase line of mutual spectral density with one of reference phase lines of the mutual phase spectrum the final decision on the value of mutual delay of these signals is made.

EFFECT: improvement of accuracy of measurement of mutual delay of random signals in conditions of additive Gaussian noise and expansion of arsenal of control methods.

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