tailieunhanh - Báo cáo hóa học: " Research Article The Application of Bioinspired Sonar to Cable Tracking on the Seafloor"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article The Application of Bioinspired Sonar to Cable Tracking on the Seafloor | Hindawi Publishing Corporation EURASIP Journal on Advances in Signal Processing Volume 2011 Article ID 484619 18 pages doi 2011 484619 Research Article The Application of Bioinspired Sonar to Cable Tracking on the Seafloor Keith Brown Chris Capus Yan Pailhas Yvan Petillot and David Lane School of Engineering and Physical Sciences Oceans Systems Laboratory Heriot Watt University Edinburgh Scotland EH14 4AS UK Correspondence should be addressed to Keith Brown Received 15 June 2010 Accepted 9 September 2010 Academic Editor Elias Aboutanios Copyright 2011 Keith Brown et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Marine mammals have developed highly effective sonar systems for detecting identifying and following underwater objects. In this paper we demonstrate that bio-inspired wideband sonar offers great capability for tracking cables on the seafloor. The analysis of biological signals including dolphin clicks suggests two approaches. The first is to use a wideband signal integrating the response of an object over many frequencies. For simple forms this is known to give access to shape and material information. The second idea is to use intelligent signals designed to elicit information from specific target types. In this paper results are presented from sets of experiments using bio-inspired wideband sonar. The aim of these experiments is to determine the feasibility of tracking small diameter marine communications cables using the wideband responses. Echoes from four different cable types are analysed using a variety of signals. Experiments using bio-inspired pulses illustrate the benefits of using this type of wideband signal for detection and recognition. A strong correspondence between theoretical and experimental echoes is shown. 1. Introduction The highly effective .