University of Limerick Institutional Repository

Microlocal analysis of SAR imaging of a dynamic reflectivity function

DSpace Repository

Show simple item record Felea, Raluca Gaburro, Romina Nolan, Clifford J. 2013-08-12T15:10:49Z 2013-08-12T15:10:49Z 2013
dc.description peer-reviewed en_US
dc.description.abstract In this article we consider four particular cases of Synthetic Aperture Radar imaging with moving objects. In each case, we analyze the forward operator F and the normal operator F∗F, which appear in the mathematical expression for the recovered reflectivity function (i.e. the image). In general, by applying the backprojection operator F∗ to the scattered waveform (i.e. the data), artifacts appear in the reconstructed image. In the first case, the full data case, we show that F∗F is a pseudodifferential operator which implies that there is no artifact. In the other three cases, which have less data, we show that F∗F belongs to a class of distributions associated to two cleanly intersecting Lagrangians Ip,l(Δ; Λ), where Λ is associated to a strong artifact. At the and of the article, we show how to microlocally reduce the strength of the artifact. en_US
dc.language.iso eng en_US
dc.publisher Society for Industrial and Applied Mathematics en_US
dc.relation.ispartofseries SIAM Journal on Mathematical Analysis;July
dc.subject moving SAR en_US
dc.title Microlocal analysis of SAR imaging of a dynamic reflectivity function en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.contributor.sponsor SFI en_US
dc.relation.projectid 06/MI/005 en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US
dc.internal.rssid 1442443

Files in this item

This item appears in the following Collection(s)

Show simple item record

Search ULIR


My Account