Strong Spurious Noise Suppression for an FMCW SAR

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dc.contributor.authorTian, Haishan
dc.contributor.authorChang, Wenge
dc.contributor.authorLi, Xiangyang
dc.contributor.authorLiu, Zhaohe
dc.coverage.issue3cs
dc.coverage.volume25cs
dc.date.accessioned2016-09-19T08:40:28Z
dc.date.available2016-09-19T08:40:28Z
dc.date.issued2016-09cs
dc.description.abstractTo meet the miniature requirement, a frequency modulated continuous wave synthetic aperture radar (FMCW SAR) puts tight constraint on the compactness, which causes the interference of narrow band noise. The aim of this study is to suppress the strong noise for an FMCW SAR. First, the quantitative analysis of the noise is performed. It is found that a strong spurious noise of the analog-to-digital converter (ADC) is introduced from interferences and significantly affects the image quality; the other noise components are sufficiently small, thus having ignorable influences. Then, a Fast Fourier Transform (FFT) based method of noise suppression is proposed to eliminate the ADC strong spurious noise, adopting an ADC and a field programmable gate array (FPGA). Finally, using the real Ku-band FMCW SAR data, the level of the noise components is measured and the effectiveness of the proposed noise suppression method is validated. The results show that the measured noise level coincides with the theoretical noise level, and the proposed noise suppression method effectively eliminates the ADC strong spurious noise.en
dc.formattextcs
dc.format.extent581-591cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2016 vol. 25, č. 3, s. 581-591. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2016.0581en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/63204
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2016/16_03_0581_0591.pdfcs
dc.rightsCreative Commons Attribution 3.0 Unported Licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectFrequency Modulated Continuous Waveen
dc.subjectFMCWen
dc.subjectSynthetic Aperture Radaren
dc.subjectSARen
dc.subjectstrong spurious noiseen
dc.subjectnoise suppressionen
dc.subjectminiaturized systemen
dc.titleStrong Spurious Noise Suppression for an FMCW SARen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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