Dear Marmamers, The following paper has just been published: Dolphin sonar - modelling a new receiver concept Peter Dobbins Bioinspiration & Biomimetics (ISSN: 1748-3190) Volume 2 No 1, pages 19-29 Abstract: Observations suggest that dolphin sonars function well in the very shallow, reverberant, near-shore region of the ocean, and significantly out-perform man-made systems under such conditions. The echolocation characteristics of many small cetaceans have been measured directly and the high performance of biosonar systems is not in question, but explanations for their resolution, target detection, localization and tracking abilities are inadequate and deserve further investigation. The dolphin's lower jaw has been identified as part of an echo-receptor, and several hypotheses have been proposed to explain this. In one of these, the regularity of dolphin teeth was considered as a sonar array. This paper explores the physics of such systems with models based on established radar and sonar principles, and using data from various dolphin species. The insights gained from this modelling then lead to speculative proposals for new sonar receiver concepts that may have advantages over more conventional designs in shallow water operation. The article can be found online at: http://www.iop.org/EJ/abstract/1748-3190/2/1/003 <http://www.iop.org/EJ/abstract/1748-3190/2/1/003> or requested via email to peter.dobbins@sea.co.uk ________________________________________________________________________ The contents of this email (including any attachments) are confidential and may be legally privileged. If you are not the intended recipient of this email, any disclosure, copying, distribution or use of its contents is strictly prohibited, and you should please notify the sender immediately and then delete it (including any attachments) from your system.