Abstract
The noise immunity of the procedures used for extracting the local maximums of the autocorrelation and cross-correlation functions of a wideband noise signal produced by a sea object is studied. The autocorrelation and cross-correlation functions refer to the outputs of one or two spatial channels formed by a hydroacoustic array in the vertical plane. The limiting cases of low and high signal-to-noise ratios are considered. The noise immunity of extracting the maximums of the correlation function is compared with the noise immunity of the signal detection.
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