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ANALYTICAL TIME DOMAIN NORMAL MODE SOLUTION OF AN ACOUSTIC WAVEGUIDE WITH PERFECTLY REFLECTING WALLS

HÜSEYIN ÖZKAN SERTLEK

Behavioural Biology Group, Institute of Biology, Leiden University, The Netherlands

TUBITAK BİLGEM, Information, Technologies Institute, Gebze, Turkey

Present address: Behavioural Biology Group, Institute of Biology, Leiden University, The Netherlands.

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SERKAN AKSOY

Electronics Engineering Department, Gebze Institute of Technology, Turkey

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https://doi.org/10.1142/S0218396X12500269Cited by:4 (Source: Crossref)

Abstract

Solution of wide-band underwater acoustic problems with the classical Normal Mode method in the frequency domain needs to solve the problem repeating for every frequency component of the wide-band source signal. In this paper, a direct and causal analytical Time Domain Normal Mode Method is presented for arbitrary time-dependent acoustic sources for a single layered isovelocity waveguide. An incomplete separation of variables technique is used to solve the inhomogeneous wave equation, directly in the time domain. Therefore, it becomes possible to calculate the time domain acoustic pressure in a single run.

Keywords:

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