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A new time delay estimation in subbands for resolving multiple specular reflections

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dc.contributor.authorDobeck, Gerald J., author
dc.contributor.authorWilbur, JoEllen, author
dc.contributor.authorCharleston, Sonia, author
dc.contributor.authorAzimi-Sadjadi, Mahmood R., author
dc.contributor.authorIEEE, publisher
dc.date.accessioned2007-01-03T04:49:25Z
dc.date.available2007-01-03T04:49:25Z
dc.date.issued1998
dc.description.abstractIn this correspondence, a new time delay estimation procedure is proposed using the multiresolution analysis framework through a discrete wavelet transform (DWT). Once the signals are decomposed, the time delays are estimated iteratively in each sub-band using two different adaptation mechanisms that minimize the mean squared error (MSE) between the reference and primary signals in the corresponding sub-band and level. The localization of the minima of the MSE curves at different levels and subbands is used in order to arrive at the time delay estimates. The proposed scheme is then applied to a real-life problem of underwater target detection from the acoustic backscttered data.
dc.description.sponsorshipThis work was supported by the Office of Naval Research (ONR 321TS). The Technical Agent was Coastal Systems Station, Panama City, FL.
dc.format.mediumborn digital
dc.format.mediumarticles
dc.identifier.bibliographicCitationAzimi-Sadjadi, M. R., et al., A New Time Delay Estimation in Subbands for Resolving Multiple Specular Reflections, IEEE Transactions on Signal Processing 46, no. 12 (December 1998): 3398-3403.
dc.identifier.urihttp://hdl.handle.net/10217/939
dc.languageEnglish
dc.language.isoeng
dc.publisherColorado State University. Libraries
dc.relation.ispartofFaculty Publications
dc.rights©1998 IEEE.
dc.rightsCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.
dc.subjecttime delay estimation
dc.subjectadaptive filtering
dc.subjectsonar
dc.subjectunderwater target detection
dc.subjectwavelets
dc.titleA new time delay estimation in subbands for resolving multiple specular reflections
dc.typeText

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