IMIS

Publicaties | Instituten | Personen | Datasets | Projecten | Kaarten
[ meld een fout in dit record ]mandje (0): toevoegen | toon Print deze pagina

Space-frequency distribution of the vector field of broad-band sound in shallow water
Ren, Q.Y.; Hermand, J.P.; Piao, S.C. (2010). Space-frequency distribution of the vector field of broad-band sound in shallow water, in: IEEE (Ed.) Oceans 2010 MTS/IEEE Seattle. Innerspace: A Global Responsibility. Seattle, Washington, USA, September 20-23, 2010. Oceans (New York), . https://dx.doi.org/10.1109/OCEANS.2010.5664109
In: IEEE (Ed.) (2010). Oceans 2010 MTS/IEEE Seattle. Innerspace: A Global Responsibility. Seattle, Washington, USA, September 20-23, 2010. Oceans (New York). IEEE: New York. ISBN 978-1-4244-4333-8. , meer
In: Oceans (New York). IEEE: New York. ISSN 0197-7385, meer
Peer reviewed article  

Beschikbaar in  Auteurs 
Documenttype: Congresbijdrage

Trefwoord
    Marien/Kust

Auteurs  Top 
  • Ren, Q.Y., meer
  • Hermand, J.P., meer
  • Piao, S.C.

Abstract
    An uniform distribution often appears in the space-frequency plane for broad-band, low-frequency sound intensity generated by a moving source in a shallow water environment. Waveguide invariant theory is used to interpret this phenomenon, and it has been applied for inverse problems in underwater acoustics. A vector sensor has advantages in providing both pressure and particle velocity information about the sound field simultaneously, and a higher signal-to-noise ratio signal than a traditional hydrophone. In the present paper, the space-frequency distribution of broad-band vector acoustic signals in a Pekeris waveguide is investigated using normal mode theory. A comparison between experimental and predicted space-frequency distributions is made for the Yellow Shark environment. The effects of the sound speed profile of the water column, the existence of a soft sediment layer, the change of sound speed or thickness of the soft sediment on the space-frequency distribution are examined. The possibility of using space-frequency distributions to invert for environmental parameters is discussed.

Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid Top | Auteurs