Porter, M. B.Stephan, Y.Démoulin, X.Jesus, S. M.Coelho, E.2014-10-162014-10-161999M.B. PORTER, S.M. JESUS, Y. STEPHAN, X. DÈMOULIN, E.F. COELHO, ``Using the echo pattern to range a sound source'' in Proceedings of First International Symposium on Physics in Signal and Image Processing, Paris.AUT: SJE00662;http://hdl.handle.net/10400.1/5350One of the currently exciting areas in SONAR research is in the use of acoustic channel models to improve SONAR systems. In this paper, we use the echo pattern at a single phone to localise a sound source in both range and depth in the ocean. To make the localisation robust, the signal processing is set-up with particular regard to which acoustic features are reliable and clear encoders of the source position. The resulting algorithm was tested using experimental data collected during INTIMATE’96- a shallow water experiment conducted on the Portuguese continental shelf[1]. The results show successful tracking over a period of several days encompassing two fixed 25-hour stations and an 18-hour period of ship manoeuvres.engconference object