Effect of ship motion on sonar detection performance

dc.contributor.author	Schothorst, Jaap G.
dc.date.accessioned	2018-10-11T14:04:47Z
dc.date.available	2018-10-11T14:04:47Z
dc.date.issued	1975/10
dc.identifier	338
dc.identifier.govdoc	CP-17/7
dc.identifier.uri	http://hdl.handle.net/20.500.12489/23
dc.description.abstract	For an unstabilized transducer, the effect of ship motion on sonar echoes is twofold: 1. Attenuation caused by the rotational movement of the transducer in the vertical plane. The results show that the different loss figures are periodic in range . The average loss (in dB) increases about linearly with the amplitude (in degrees) of the swinging transducer. 2. Distortion caused by the irregular translational movement of the transducer in the direction of the target. In order to arrive at realistic figures for attenuation and distortion, actual ship movements are being measured. Some samples of recorded ship movement data are presented.
dc.format	9 p. : ill. ; digital, PDF file
dc.language	English
dc.publisher	NATO. SACLANTCEN
dc.source	In: Ocean Acoustic Modelling (SACLANTCEN Conference Proceedings CP-17), Part 7, 1975, pp. 39-1 - 39-9.
dc.subject	Sonar systems
dc.subject	Ship motion
dc.subject	Transducers
dc.subject	Sound attenuation
dc.title	Effect of ship motion on sonar detection performance
dc.type	Papers and Articles
dc.type	Conference Proceedings (CP)