Propagation loss measurements for low frequency sonar in Emerald Basin and Exuma Sound

Auteurs-es

  • Sean Pecknold Defence R and D Canada - Atlantic, P.O. Box 1012, Dartmouth, NS B2Y 3Z7, Canada
  • James Theriault Defence R and D Canada - Atlantic, P.O. Box 1012, Dartmouth, NS B2Y 3Z7, Canada
  • David Hazen Defence R and D Canada - Atlantic, P.O. Box 1012, Dartmouth, NS B2Y 3Z7, Canada

Mots-clés :

Acoustic wave propagation, Bandwidth, Frequencies, Frequency modulation, Underwater acoustics, Emerald basins, Propagation losses

Résumé

Propagation loss measurements for low frequency sonar in Emerald basin and Exuma sound was presented. A low-frequency hyperbolic frequency modulated signal (HFM) was employed to measure propagation loss in both a deep water environment and in a shallow water surface duct environment. The shallow water measurements indicated that loss of signal coherence increases the propagation loss measured, in this case by 5 dB to 10 dB over this range.

Fichiers supplémentaires

Publié-e

2002-09-01

Comment citer

1.
Pecknold S, Theriault J, Hazen D. Propagation loss measurements for low frequency sonar in Emerald Basin and Exuma Sound. Canadian Acoustics [Internet]. 1 sept. 2002 [cité 11 mai 2026];30(3):84-5. Disponible à: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1466

Numéro

Vol. 30 No. 3 (2002)

Rubrique

Actes du congrès de la Semaine canadienne d'acoustique

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