An Interferometric Method for Detecting a Moving Sound Source with a Vector-Scalar Receiver

The paper discusses the conditions imposed on the spectrum of an emitted signal for which the interferometric method of detecting a moving sound source in shallow water is applicable for vector-scalar receivers. It is shown that a normalized spectrogram representing a two-dimensional Fourier transfo...

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Bibliographic Details
Published in:Acoustical physics 2018, Vol.64 (1), p.37-48
Main Authors: Kaznacheev, I. V., Kuznetsov, G. N., Kuz’kin, V. M., Pereselkov, S. A.
Format: Article
Language:English
Subjects:
Acoustics
Fourier transforms
Interference
Interference immunity
Interferometry
Ocean Acoustics. Hydroacoustics
Physics
Physics and Astronomy
Shallow water
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Summary:The paper discusses the conditions imposed on the spectrum of an emitted signal for which the interferometric method of detecting a moving sound source in shallow water is applicable for vector-scalar receivers. It is shown that a normalized spectrogram representing a two-dimensional Fourier transform of the interferometric pattern is identical for all four acoustic field components and combinations thereof. Results of a field experiment in which a vector-scalar receiver was applied are presented. The interference immunity of the method is considered for different field components in the case of isotropic interference.
ISSN:1063-7710
1562-6865
DOI:10.1134/S1063771018010104