Methods of measuring frequency shifts in the interference structure of the sound field in oceanic waveguides |
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| Authors: | V M Kuz’kin and S A Pereselkov |
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| Institution: | 1.Scientific Center of Wave Research, Prohorov Institute of General Physics,Russian Academy of Sciences,Moscow,Russia;2.Voronezh State University,Voronezh,Russia |
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| Abstract: | The efficiency of the correlation method is considered as applied to measuring frequency shifts of maxima in the interference
structure of the sound speed under the influence of distortions of the sound-speed profile. The method is based on tracing
the position of the maximum of the cross-correlation function corresponding to the spectrum of the transmitted signal in the
frequency domain. The distortion is modeled by seasonal variations of the hydrological environment. The noise immunity of
the method is analyzed. The correlation method is compared with other known methods of tracing frequency shifts of the interference
maxima. |
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