Sonar beamforming based upon monaural localisation techniques

Sonar beamforming is usually accomplished using a multi-element transducer array. To obtain high resolution, such a system is costly and complex. In contrast, many mammals are capable of good angular resolution using only a single active element surrounded by an irregular reflector – the ear. A study of monaural localisation was therefore undertaken, with a view to the development of a novel beamforming system which uses only a single active element. Computer simulations have shown that the direction of a source can be determined by cross –correlating the output signal spectrum with the known spectral responses of the receiving system for all angles.

Grantor dc:publisher.institution

Department of Electrical Engineering

Year dc:date.issued

1987

Author dc:creator

• Tollman, Peter Alan

Advisor dc:contributor.advisor

• Denbigh, P N

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/11427/8360

OAI identifier oai:identifier

oai:open.uct.ac.za:11427/8360