Acoustic source characteristics of merchant ships

dc.contributor.author	Heine, John C.
dc.date.accessioned	2018-10-11T14:05:11Z
dc.date.available	2018-10-11T14:05:11Z
dc.date.issued	1982/06
dc.identifier	608
dc.identifier.govdoc	CP-32/1
dc.identifier.uri	http://hdl.handle.net/20.500.12489/72
dc.description.abstract	Merchant ships are sources of broadband acoustic noise which can interfere with and confuse ocean surveillance. The purpose of this discussion is to review: the status of research on and measurements of merchant ship acoustic characteristics and known and conjectured properties of merchant ship acoustic signatures. Sources of continuous and discrete, or tonal, radiation are discussed, including ship propellers and internal machinery. Mechanisms which can cause tonal bandwidth are identified. These concepts are illustrated through a discussion of some results obtained from a detailed measurement of a bulk carrier.
dc.format	16 p. : ill. ; digital, PDF file
dc.language	English
dc.publisher	NATO. SACLANTCEN
dc.source	In: Underwater Ambient Noise (SACLANTCEN Conference Proceedings CP-32), Vol. 2, Part 1, 1982, pp. 2-1 - 2-16.
dc.subject	Ambient noise - ship induced
dc.subject	Shipping noise
dc.subject	Merchant ships
dc.title	Acoustic source characteristics of merchant ships
dc.type	Papers and Articles
dc.type	Conference Proceedings (CP)