FIELD: instruments, automation equipment. SUBSTANCE: method involves converting first signal into spectral Fourier transform, converting second signal into complex conjugation of spectral Fourier transform, generation of mutual spectrum, production of extended spectrum from mutual spectrum by means of alignment of absolute values of its harmonics by constant which keeps invariance of absolute values amplitude squares of all harmonics. Then method involves reverse Fourier transform of extended spectrum. EFFECT: range of global maximal value is by order of magnitude less than for cross-correlation function, decreased level of lateral oscillations. 4 dwg, 4 ex
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