Abstract
Main problems of application of vector sensors (VSs) for flexible towed arrays are providing high performance under small dimensions as well as necessary flow noise immunity. The objective is to develop VSs met these demands. A simulation of performance of VS embedded in a flexible towed array body formed with sound transparent compound is performed. The developed one-dimensional model, predicts existence of a suspension resonance, dividing frequency band of VS into two parts. The lower part of the band is more applicable for VS of inertial type while the upper one is more preferred for VS of gradient type. A possibility to control the suspension resonance frequency in limits of 500–2000 Hz is shown for experimental model. The flow noise immunity problem is analyzed for different frequency bands and types of VSs. Various methods of flow noise cancellation are developed for different frequency bands and types of VSs, which include power flux processing, compensation of vibration response, convolution processing. Examples of design of one- and two-component VSs are represented. [The study was supported by the grant 13-NTP-II-08 of Far Eastern Branch of Russian Academy of Sciences.]
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