The Journal of the Acoustical Society of America, 2009-04, Vol.125 (4_Supplement), p.2738-2738
2009
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Details
- Autor(en) / Beteiligte
- Titel
- Rhythmic analysis of sperm whale broadband acoustic signals
- Ist Teil von
- The Journal of the Acoustical Society of America, 2009-04, Vol.125 (4_Supplement), p.2738-2738
- Erscheinungsjahr
- 2009
- Quelle
- AIP Journals (American Institute of Physics)
- Beschreibungen/Notizen
- Rhythmic analysis of sperm whale clicks, based on the static Fourier transform, was previously reported in the literature as a tool for extracting the acoustic signature of individual sperm whales [Andre and Kamminga, J. Mar. Biol. Ass. U.K. (2000)]. A new approach, originated from the algorithm developed for human motion analysis [Sabatier and Ekimov, “A Review of Human Signatures in Urban Environments Using Seismic and Acoustic Methods,” Proc. IEEE (2008)], is applied to study time-dependent periodicity in sperm whale signals recorded in the Gulf of Mexico. The new approach for rhythmic analysis of sperm whales clicks, which are used for navigation purposes, shows the presence of stable temporal periodicity that could possibly be attributed to the acoustic portrait of individuals. [Research supported in part by SPAWAR.]