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Conference Paper: Ultrasonic Detection using Wideband Discrete Wavelet Transform

TitleUltrasonic Detection using Wideband Discrete Wavelet Transform
Authors
KeywordsComputers
Issue Date2001
PublisherIEEE.
Citation
IEEE Region International Conference on Electrical and Electronic Technology, Singapore, 19-22 August 2001, v. 2, p. 890-893 How to Cite?
AbstractThis paper describes the design of a wideband spatial processor for the detection of a straight-line object by an ultrasonic pulse-echo detection system. An ultrasonic pulse is transmitted from the transducer and the two wavelets diffracted from the two end points of the straight-line object are received by three spatially separated receivers. Three stages of signal processing are carried out. At the first stage, the mother wavelet operator generates three sets of two-dimensional wavelet coefficients. At the second stage, cross wavelet transforms are performed on wavelet coefficients obtained in the first stage. At the third stage, cross wavelet transforms are performed on cross wavelet coefficients obtained in the second stage. As a result of this three-stage operation, a high-resolution image of the environment is generated and the range and bearing of the two end points of the straight-line object are obtained. A simulation program is developed to investigate the processing algorithm in an ultrasonic detection environment.
Persistent Identifierhttp://hdl.handle.net/10722/46309
ISSN

 

DC FieldValueLanguage
dc.contributor.authorLam, FKen_HK
dc.contributor.authorLeung, CKen_HK
dc.date.accessioned2007-10-30T06:47:02Z-
dc.date.available2007-10-30T06:47:02Z-
dc.date.issued2001en_HK
dc.identifier.citationIEEE Region International Conference on Electrical and Electronic Technology, Singapore, 19-22 August 2001, v. 2, p. 890-893en_HK
dc.identifier.issn0886-1420en_HK
dc.identifier.urihttp://hdl.handle.net/10722/46309-
dc.description.abstractThis paper describes the design of a wideband spatial processor for the detection of a straight-line object by an ultrasonic pulse-echo detection system. An ultrasonic pulse is transmitted from the transducer and the two wavelets diffracted from the two end points of the straight-line object are received by three spatially separated receivers. Three stages of signal processing are carried out. At the first stage, the mother wavelet operator generates three sets of two-dimensional wavelet coefficients. At the second stage, cross wavelet transforms are performed on wavelet coefficients obtained in the first stage. At the third stage, cross wavelet transforms are performed on cross wavelet coefficients obtained in the second stage. As a result of this three-stage operation, a high-resolution image of the environment is generated and the range and bearing of the two end points of the straight-line object are obtained. A simulation program is developed to investigate the processing algorithm in an ultrasonic detection environment.en_HK
dc.format.extent346281 bytes-
dc.format.extent8841 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypetext/plain-
dc.languageengen_HK
dc.publisherIEEE.en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rights©2001 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.en_HK
dc.subjectComputersen_HK
dc.titleUltrasonic Detection using Wideband Discrete Wavelet Transformen_HK
dc.typeConference_Paperen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0886-1420&volume=2&spage=890&epage=893&date=2001&atitle=Ultrasonic+Detection+using+Wideband+Discrete+Wavelet+Transformen_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1109/TENCON.2001.949724en_HK
dc.identifier.hkuros71684-

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