|NEW VOL 20
|PAS - GDANSK DIVISION
pp. 193-201, vol. 18, 2015
Polish Naval Academy, Gdynia, Poland
Key words: orthogonal system; measurement of motorboat
Abstract: Paper presents problem of modeling sound propagation tract basis on orthogonal system of Walsh functions. Proposed method allow for determination of sound propagation tract model which among others thing should gives possibility to prediction parameters of sound source. First of all the technique of Walsh Transform is presented in details. The mathematical description of Walsh Transform as well as detail description of calculation process were presented. Secondly the example results of preliminary research carried out on simulated signals as well as vibrations and hydroacoustics signals acquired during real condition measurement of motorboat were presented. At the end obtained results were discussed and direction of the future research were pointed.
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