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

Doppler effect in the CW FM sonar

pp. 157-164, vol. 14, 2011

Jacek Marszal
Gdansk University of Technology, Gdansk, Poland

Roman Salamon
Gdansk University of Technology, Gdansk, Poland

Krzysztof Zachariasz
Gdansk University of Technology, Gdansk, Poland

Aleksander Schmidt
Gdansk University of Technology, Gdansk, Poland

Key words: silent sonar; continuous wave frequency modulation sonar

Abstract: When sonars are used for military purposes they have to ensure unobtrusive operation, afeature that can be potentially secured by ‘silent sonars’ or continuous wave frequency modulation sonars (CW FM sonars). The article presents how these sonars operate and identifies the relations between their parameters. The Doppler effect and its impact on the CW FM sonar are studied to identify how it affects the sonar’s parameters. The results of simplified theoretical calculations are supported with results of computer simulations of a more realistic model.

Download: Fulltext PDF, BibTeX

© Polish Acoustical Society - Gdansk Department, Polish Academy of Sciences. This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported. (CC BY-NC-SA 3.0)