Spectrally Efficient Constant Envelope Modulation for GNSS Signals

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dc.contributor.authorXia, Xuan
dc.contributor.authorTang, Zuping
dc.contributor.authorWei, Jiaolong
dc.contributor.authorZhou, Zhihui
dc.coverage.issue3cs
dc.coverage.volume27cs
dc.date.accessioned2018-11-23T09:26:52Z
dc.date.available2018-11-23T09:26:52Z
dc.date.issued2018-09cs
dc.description.abstractAs the L-band spectral resources for GNSS services are almost exhausted, new bands such as S-band and C-band has been considered for new GNSS signals. In addition to the traditional signal features, out-of-band radiation is an important factor to be considered for signal designing in these new bands. In this paper, a mathematical model for the optimization of GNSS signal waveforms was constructed by integrating ranging accuracy, anti-jamming performance and out-of-band radiation suppression requirements. In combination with numerical optimization methods, a spectrally efficient constant envelope modulation scheme based on phase trajectory optimization was proposed. The modulated signal has a full-response continuous phase waveform, which facilitates signal processing and implementation at both ends of the transmission and reception. In addition, in the signal design, the balance between signal accuracy, anti-interference performance and out-of-band radiation suppression can be achieved through the adjustment of the weight coefficient. The simulation results show that the out-of-band radiation can be reduced by about 7.2-42.7 dB compared with the existing scheme when the signal performance difference is lower than 2 dB.en
dc.formattextcs
dc.format.extent813-818cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2018 vol. 27, č. 3, s. 813-818. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2018.0813en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/137040
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttps://www.radioeng.cz/fulltexts/2018/18_03_0813_0818.pdfcs
dc.rightsCreative Commons Attribution 4.0 International licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectSpectrally efficienten
dc.subjectconstant envelopeen
dc.subjectGNSSen
dc.subjectlow out-of-band radiationen
dc.titleSpectrally Efficient Constant Envelope Modulation for GNSS Signalsen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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