EURASIP Journal on Applied Signal Processing 
Volume 2006 (2006), Article ID 25257, 10 pages
doi:10.1155/ASP/2006/25257

Analysis and Modeling of Echolocation Signals Emitted by Mediterranean Bottlenose Dolphins

Maria Greco and Fulvio Gini

 Dipartimento di Ingegneria dell'Informazione, Elettronica, Informatica, Telecomunicazioni Università di Pisa, via G. Caruso 16, Pisa 56122, Italy
Received 21 January 2005; Revised 31 May 2005; Accepted 22 August 2005

Recommended by Jacques Verly

Abstract

We analyzed the echolocation sounds emitted by Mediterranean bottlenose dolphins. We extracted the click trains by visual inspection of the data files recorded along the coast of the Tuscany with the collaboration of the CETUS Research Center. We modeled the extracted sonar clicks as Gaussian or exponential multicomponent signals, we estimated the characteristic parameters and compared the data with the reconstructed signals based on the estimates. Results about the estimation and the data fitting are largely shown in the paper.