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dc.creatorPesyna, Kenneth M. Jr
dc.creatorHeath, Robert W. Jr.
dc.creatorHumphreys, Todd E.
dc.date.accessioned2018-01-25T18:00:46Z
dc.date.available2018-01-25T18:00:46Z
dc.date.issued2014-09
dc.identifierdoi:10.15781/T2HT2GV0R
dc.identifier.urihttp://hdl.handle.net/2152/63211
dc.description.abstractThis paper demonstrates for the first time that centimeteraccurate positioning is possible based on data sampled from a smartphone-quality Global Navigation Satellite System (GNSS) antenna. Centimeter-accurate smartphone positioning will enable a host of new applications such as globally-registered fiduciary-marker-free augmented reality and location-based contextual advertising, both of which have been hampered by the several-meterlevel errors in traditional GNSS positioning. An empirical analysis of data collected from a smartphone-grade GNSS antenna reveals the antenna to be the primary impediment to fast and reliable resolution of the integer ambiguities which arise when solving for a centimeter-accurate carrierphase differential position. The antenna’s poor multipath suppression and irregular gain pattern result in large timecorrelated phase errors which significantly increase the time to integer ambiguity resolution as compared to even a low-quality stand-alone patch antenna. The time to integer resolution—and to a centimeter-accurate fix—is significantly reduced when more GNSS signals are tracked or when the smartphone experiences gentle wavelength-scale random motion.en_US
dc.language.isoengen_US
dc.relation.ispartofRadionavigation Laboratory Conference Proceedingsen_US
dc.subjectPesynaen_US
dc.subjectHeathen_US
dc.subjectHumphreysen_US
dc.subjectGNSS antennaen_US
dc.subjectsmartphone-qualityen_US
dc.subjectcentimeter positioningen_US
dc.titleCentimeter Positioning with a Smartphone-Quality GNSS Antennaen_US
dc.typeConference proceedingsen_US
dc.description.departmentAerospace Engineering and Engineering Mechanicsen_US
dc.rights.restrictionOpenen_US


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