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Broadband Sonar with a Cylindrical Antenna

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As the spectrum of signals in plane antenna sonars becomes wider, the effect is a growing width of the beams deflected, if the beamformer compensates phases on the spectrum's mid frequency only. The article presents the results of calculations designed to establish whether a similar effect occurs in broadband sonars with a cylindrical antennas. Transmitting antennas with wide beams and receiving antennas with narrow beams were used for this purpose. It was proved that cylindrical antenna sonars do not need broadband digital beamformers, which require much more powerful computers than narrow band beamformers.
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Document Type: Short Communication

Publication date: January 1, 2006

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  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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