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Introduction
Ainslie, M.A. (2010). Introduction, in: Ainslie, M. Principles of sonar performance modelling. pp. 3-26. https://hdl.handle.net/10.1007/978-3-540-87662-5_1
In: Ainslie, M. (2010). Principles of sonar performance modelling. Springer-Verlag: Berlin; Heidelberg. ISBN 978-3-540-87661-8. xxviii, 707 pp. https://hdl.handle.net/10.1007/978-3-540-87662-5, more

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Keyword
    Marine

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  • Ainslie, M.A.

Abstract
    Sonar can be thought of as a kind of underwater radar, using sound instead of radio waves to interrogate its surroundings. But what is special about sound in the sea? Radio waves travel unhindered in air, whereas sound energy is absorbed relatively quickly. In water, the opposite is the case: low absorption and the presence of natural oceanic waveguides combine to permit propagation of sound over thousands of kilometers, whereas the sea is opaque to most of the electromagnetic spectrum.

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