Array shape determination with a real-time model

dc.contributor.author	Ruffa, A. A.
dc.date.accessioned	2018-10-11T14:08:40Z
dc.date.available	2018-10-11T14:08:40Z
dc.date.issued	1993/08
dc.identifier	11922
dc.identifier.govdoc	CP-42/2
dc.identifier.uri	http://hdl.handle.net/20.500.12489/498
dc.description.abstract	A shape estimation scheme based on precomputed frequency-domain solutions of array motion is presented. The boundary conditions supporting each solution are discrete Fourier transform (OFT) components of sensor measurements, which are updated in real time. A prediction of array shape in the time domain is obtained by performing an inverse OFT on the set of frequency-domain solutions. Extensions to the method include the use of slope inputs instead of displacements as well as inclusion of an arbitrary number of inputs to minimize the effect of measurement error. A comparison of the results with data shows good agreement, and CPU time is an order of magnitude faster than real time on the VAX 8800 (with an update rate of 0.74 sec).
dc.format	7 p. : ill., 2 fig. ; digital, PDF file
dc.language	English
dc.publisher	NATO. SACLANTCEN
dc.source	In: Low frequency active sonar (SACLANTCEN Conference Proceedings CP-42), vol. 2, 1993, pp. G/22-1 - G/22-7.
dc.subject	Sonar arrays
dc.subject	Towed arrays
dc.subject	Sonar systems
dc.subject	Modelling and simulation
dc.title	Array shape determination with a real-time model
dc.type	Papers and Articles
dc.type	Conference Proceedings (CP)