Abstract
It is demonstrated that the determination of the relative positions of two signals on the time axis with the help of cepstral analysis is characterized by higher immunity to signal fluctuations than a direct measurement of their positions. The theory of the cepstral approach and the results of numerical calculations that demonstrate its potentialities are presented. The cepstral analysis is applied to the processing of signals obtained in a full-scale tomographic experiment in the Mediterranean Sea in 1994. Refined values of the time intervals between the arrivals of signals transmitted through a 200-km-long propagation path are determined. It is demonstrated that the method used for the determination of the signal propagation times is immune to noise associated with the distortions of the signal wave form.
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