Abstract

Within the framework of a numerical experiment, the holographic processing of noise emission from a moving underwater sound source in the presence of intense internal waves, which cause horizontal refraction of sound field waves, is considered. The interference of the undisturbed and disturbed fields forms a moiré interference pattern (interferogram) that masks the interferogram of a noise source. Registration of a moiré interferogram using a two-dimensional Fourier transform makes it possible to separate the spectral densities of the unperturbed and perturbed fields. This makes it possible to reconstruct the interferogram of the unperturbed field in the presence of intense internal waves. The relative error of its reconstruction is estimated. The errors in reconstructing the range and radial velocity of the source due to horizontal refraction are analyzed.

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