HYDROACOUSTICS
ANNUAL JOURNAL
START NEW VOL 20 SEARCH STATISTICS PAS - GDANSK DIVISION

Improving the accuracy of bearing in active sonar with cylindrical array using spectrum estimation

pp. 159-166, vol. 16, 2013

Wojciech LeĊ›niak
Gdansk University of Technology, Faculty of Electronics , Telecomunications and Informatics, Department of Marine Electronic Systems, Gdansk, Poland

Mariusz Rudnicki
Gdansk University of Technology, Faculty of Electronics , Telecomunications and Informatics, Department of Marine Electronic Systems, Gdansk, Poland

Key words: cylindrical array; bearing estimation; direction of arrival; spatial spectrum

Abstract: The articles presents a method for improving the accuracy of bearing in multibeam sonar with a cylindrical array. Based on a known spatial spectrum estimation technique, the method has been successfully used in linear array systems. Its accuracy of bearing is satisfactory and ensures a relatively low computational effort. The article discusses certain simplifications and assumptions to adapt the spatial spectrum estimation technique in linear arrays to the needs of cylindrical arrays. Simulation results are compared to those achieved in the monopulse method.

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