Analysis of Background Ionospheric Effects on Geosynchronous SAR Imaging

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dc.contributor.authorJi, Yifei
dc.contributor.authorZhang, Qilei
dc.contributor.authorZhang, Yongsheng
dc.contributor.authorDong, Zhen
dc.coverage.issue1cs
dc.coverage.volume26cs
dc.date.accessioned2017-04-18T08:21:44Z
dc.date.available2017-04-18T08:21:44Z
dc.date.issued2017-04cs
dc.description.abstractBackground ionospheric propagation effects are adverse to the performance of Geosynchronous Synthetic Aperture Radar (GEO SAR) system. This paper focuses on the background ionospheric phase advance, which can be modelled as a function of Slant Total Electron Content (STEC). The dispersive feature of the phase advance caused by the background ionosphere could be able to distort the GEO SAR range-imaging. Furthermore, for GEO SAR, the integration time is ultra-long and the coverage is ultra-large, thus temporal and spatial distributions of the background ionosphere have to be taken into account. The resultant ionospheric phase variations might decorrelate the azimuth signal and then lead to azimuth-imaging deteriorations. In this paper, the theoretical model of the background ionospheric effects on GEO SAR imaging is established and in-depth analyses are presented. Finally, theoretical analyses are validated by the signal-level simulation.en
dc.formattextcs
dc.format.extent130-138cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2017 vol. 26, č. 1, s. 130-138. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2017.0130en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/64717
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2017/17_01_0130_0138.pdfcs
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectGeosynchronous Synthetic Aperture Radar (GEO SAR)en
dc.subjectimagingen
dc.subjectbackground ionosphereen
dc.subjectTotal Electron Content (TEC)en
dc.subjectSlant Total Electron Content (STEC)en
dc.titleAnalysis of Background Ionospheric Effects on Geosynchronous SAR Imagingen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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