Sonar beamforming based upon monaural localisation techniques

Doctoral Thesis

1987

Permanent link to this Item
http://hdl.handle.net/11427/8360
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thesis_ebe_1987_tollman_pa.pdf (7.18 MB)
Authors
Tollman, Peter Alan
Supervisors
Denbigh, P N
Journal Title
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Volume Title
Publisher
Publisher

University of Cape Town

Department
Department of Electrical Engineering
Faculty
Faculty of Engineering and the Built Environment
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Abstract
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.
Description

Includes bibliographies.

Keywords
Signal processing

Reference:

Tollman, P. 1987. Sonar beamforming based upon monaural localisation techniques. University of Cape Town.

Collections
PhD / Doctoral