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Animations of acoustical pulse (time-domain) signal propagation in a realistic waveguide to high frequencies.

Authors: Nataly A. Sidorovskaia; Michael F. Werby;

Animations of acoustical pulse (time-domain) signal propagation in a realistic waveguide to high frequencies.

Abstract

Recent developments have made it possible to perform propagation calculations in realistic oceans to high frequencies. It is possible to deal with on the order of hundreds of modes rather quickly and by storing the frequency-domain field over some specified range over the water column and for a fine frequency mesh, it is possible by a new Fourier transform algorithm to reconstruct time-domain solutions in reasonable times. Time frames can be produced for various pulse forms and realistic animations can be created. Thus this enables concentration on the physics of pulse arrivals as well as distortion effects from submerged inclusions. The insight that arises from these calculations, whether they are still shots or actual animations, is very revealing and affords an additional perspective of the complete process that otherwise would not be revealed by less ambitious calculations. A variety of animations and still shots for several physical environments are presented and much of the theoretical results with the intuitive powers that only animations offer are described. [Work supported by Naval Research Laboratory and Office of Naval Research.]

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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