Increase of Carrier-to-Noise Ratio in GPS Receivers Caused by Continuous-Wave Interference

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dc.contributor.authorLi, Jian
dc.contributor.authorNie, Junwei
dc.contributor.authorLi, Baiyu
dc.contributor.authorWang, Feixue
dc.coverage.issue3cs
dc.coverage.volume25cs
dc.date.accessioned2016-09-19T08:40:27Z
dc.date.available2016-09-19T08:40:27Z
dc.date.issued2016-09cs
dc.description.abstractThe increased use of personal private devices (PPDs) is drawing greater attention to the effects of continuous-wave interference (CWI) on the performance of global positioning system (GPS) receivers. The effective carrier-to-noise density ratio (C/N0), an essential index of GNSS receiver performance, is studied in this paper. Receiver tracking performance deteriorates in the presence of interference. Hence, the effective C/N0, which measures tracking performance, decreases. However, simulations and bench tests have shown that the effective C/N0 may increase in the presence of CWI. The reason is that a sinusoidal signal is induced by the CWI in the correlator and may be tracked by the carrier tracking loop. Thus, the effective carrier power depends on the power of the signal induced by the CWI, and the effective C/N0 increases with the power of the CWI. The filtering of the CWI in the carrier tracking loop correlator and its effect on the phase locked loop (PLL) tracking performance are analyzed. A mathematical model of the effect of the CWI on the effective C/N0 is derived. Simulation results show that the proposed model is more accurate than existing models, especially when the jam-to-signal ratio (JSR) is greater than 30 dBc.en
dc.formattextcs
dc.format.extent506-517cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2016 vol. 25, č. 3, s. 506-517. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2016.0506en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/63196
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2016/16_03_0506_0517.pdfcs
dc.rightsCreative Commons Attribution 3.0 Unported Licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectReceiver performanceen
dc.subjectinterference monitoringen
dc.subjectsignal-to-interference-plus-noise ratioen
dc.titleIncrease of Carrier-to-Noise Ratio in GPS Receivers Caused by Continuous-Wave Interferenceen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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