Two-Dimensional Frequency Domain Second-Order Keystone Transform for Weak Target Integration Detection Based on Bistatic Radar Configuration

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dc.contributor.authorLei, Z.
dc.contributor.authorRao, X.
dc.contributor.authorJin, P.
dc.contributor.authorYi, H.
dc.contributor.authorHu, J.
dc.coverage.issue1cs
dc.coverage.volume32cs
dc.date.accessioned2023-10-11T07:07:10Z
dc.date.available2023-10-11T07:07:10Z
dc.date.issued2023-04cs
dc.description.abstractIn this paper, a novel coherent integration algorithm, i.e., two-dimensional frequency domain second-order keystone transform (FDSOKT), is proposed to detect a weak maneuvering target based on bistatic radar configuration. To eliminate range migration and Doppler frequency migration, the radar echoes are transformed into two-dimensional frequency domain firstly, and then a series of rescaling transforms, matched filter functions and compensation functions are performed respectively. With the elimination of the couplings between range frequency and azimuth frequency caused by radial velocity and acceleration, the energy of the echoes is focused in two-dimensional time domain, which improves the detection performance of weak target. In addition, to deal with Doppler ambiguity, different Doppler ambiguity cases are discussed and could be solved well. At last, some simulation experiments are provided and the effectiveness of FDSOKT is proved by the results.en
dc.formattextcs
dc.format.extent160-167cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2023 vol. 32, č. 1, s. 160-167. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2023.0160en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/214306
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttps://www.radioeng.cz/fulltexts/2023/23_01_0160_0167.pdfcs
dc.rightsCreative Commons Attribution 4.0 International licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectBistatic radaren
dc.subjectrange migrationen
dc.subjectDoppler frequency migrationen
dc.subjectsecond-order keystone transformen
dc.subjectDoppler ambiguityen
dc.subjecttwo-dimensional frequency domainen
dc.titleTwo-Dimensional Frequency Domain Second-Order Keystone Transform for Weak Target Integration Detection Based on Bistatic Radar Configurationen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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