Title :
Modelling acoustic propagation in the time domain
Author :
Harrison, C.H. ; Robins, A.J.
Author_Institution :
BAeSEMA Ltd., UK
fDate :
28 Sep-1 Oct 1998
Abstract :
Time domain propagation calculations can handle continuous or pulsed broadband signals including multipaths, Doppler and temporal fluctuations in a surprisingly straightforward manner. All features are important for sonar stimulators and simulation. The approach used is still valid in shallow water or at low frequencies and is compatible with real time operation, including multiple moving sources and hydrophones and two-way paths. A comparison is made with the standard frequency domain model SAFARI
Keywords :
oceanography; sonar; underwater acoustic propagation; Doppler fluctuation; acoustic propagation; calculation; coast; continuous signal; modelling; multipaths,; ocean; pulsed broadband signal; shallow water; sonar; temporal fluctuation; time domain model; underwater sound; Acoustic propagation; Acoustic testing; Acoustic waves; Delay lines; Fluctuations; Frequency domain analysis; Propagation losses; Sonar equipment; System testing; Water resources;
Conference_Titel :
OCEANS '98 Conference Proceedings
Conference_Location :
Nice
Print_ISBN :
0-7803-5045-6
DOI :
10.1109/OCEANS.1998.725632
