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The Choice for the Signal Processing Kernel in Synthetic Aperture Sonar: Considerations and Implications

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Synthetic Aperture Sonar uses coherent integration of successive pings to enhance the resolution of side looking sonar. In this paper three different SAS methods are applied to obtain high-resolution images. The first method is applied ping by ping in the frequency domain, whereas the second and third method are applied in the wavenumber-frequency domain. The choice for a certain method has implications with respect to a variety of aspects. A well-considered choice for a certain method depends on these implications. The interaction with autofocusing is analysed for two methods: displaced phase centres and image correlation. Application to experimental data shows that the best combination is the Stolt migration algorithm in combination with image correlation autofocus.

Document Type: Research Article

Publication date: September 1, 2002

More about this publication?
  • 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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