Data obtained from the processing of records of underwater noise produced by seagoing vessels are used to refine the model
of the noise amplitude modulation caused by the rotation of the propeller shaft and ship roll and pitch in a seaway. Specifically,
the width of the frequency band of the modulation process, the value of the modulation coefficient, and the distribution of
the magnitude and phase of the modulation coefficient over the carrier frequency spectrum are investigated.
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Translated from Akusticheski
$\overset{\lower0.5em\hbox{$\overset{\lower0.5em\hbox{
Zhurnal, Vol. 49, No. 2, 2003, pp. 224–228.
Original Russian Text Copyright © 2003 by Kudryavtsev, Luginets, Mashoshin.
Deceased.
The paper is dedicated to the memory of Aleksandr Aleksandro-vich Kudryavtsev.