TDOA, Frequency and Phase Offsets Estimation Taking Into Account Carrier Phase of Arrival

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dc.contributor.authorJanjic, Milos
dc.contributor.authorVukmirovic, Nenad
dc.contributor.authorEric, Miljko
dc.coverage.issue4cs
dc.coverage.volume26cs
dc.date.accessioned2018-06-18T10:29:50Z
dc.date.available2018-06-18T10:29:50Z
dc.date.issued2017-12cs
dc.description.abstractThis paper deals with estimation of time difference of arrival (TDOA) and phase and frequency offsets between the channels in a receiving system with two distributed time synchronized, but phase and frequency unlocked channels. The system receives a radio signal with a known waveform. We analyze the impacts of using the carrier phase of arrival (CPOA) on parameter estimation accuracy. Depending on which of the parameters are unknown, three cases are considered. For the case when phase, frequency, and time shifts are all unknown, we derive the Fisher Information Matrix (FIM) in closed form, and Cramer-Rao bound (CRB) closed form expressions for the unknown phase and frequency offsets case, and the unknown TDOA case. Two maximum likelihood type (ML) statistically efficient estimation algorithms are proposed. The CRBs and simulation results show that in the unknown TDOA case the accuracy of TDOA estimation can be significantly increased by using CPOA.en
dc.formattextcs
dc.format.extent1143-1150cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2017 vol. 26, č. 4, s. 1143-1150. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2017.1143en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/82946
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2017/17_01_1143_1150.pdfcs
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.accessopenAccessen
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subjectTime Difference of Arrival (TDOA)en
dc.subjectCarrier Phase of Arrival (CPOA)en
dc.subjectfrequency offseten
dc.subjectphase offseten
dc.subjectdual unlocked sensorsen
dc.subjectDistributed Beamforming (DB)en
dc.titleTDOA, Frequency and Phase Offsets Estimation Taking Into Account Carrier Phase of Arrivalen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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