Low-cost Precise Vehicular Positioning in Urban Environments

dc.creatorHumphreys, Todd E.
dc.creatorMurrian, Matthew
dc.creatorNarula, Lakshay
dc.date.accessioned2020-08-04T13:44:01Z
dc.date.available2020-08-04T13:44:01Z
dc.date.issued2018
dc.description.abstractA system developed at The University of Texas for low-cost precise urban vehicular positioning is demonstrated to achieve a probability of correct integer fixing greater than 96.5% for a probability of incorrect integer fixing surely less than 2.3% and likely less than 1%. This is demonstrated using data captured during 3.4 hours of driving on a repeating urban test route over three separate days. The results are achieved without any aiding by inertial or electro-optical sensors. Development and evaluation of the unaided GNSS-based precise positioning system is a key milestone toward the overall goal of combining precise GNSS, vision, radar, and inertial sensing for all-weather high-integrity precise positioning for automated and connected vehicles. The system described and evaluated herein is composed of a densely-spaced reference network, a softwaredefined GNSS receiver whose processing can be executed on general-purpose commodity hardware, and a real-time kinematic (RTK) positioning engine. All components have been tailored in their design to yield competent sub-decimeter positioning in the mobile urban environment. A performance sensitivity analysis reveals that navigation data bit prediction on the GPS L1 C/A signals is key to high-performance urban RTK positioning.en_US
dc.description.departmentAerospace Engineeringen_US
dc.identifier.citationHumphreys, Todd E., Matthew Murrian, and Lakshay Narula. "Low-cost Precise Vehicular Positioning in Urban Environments," In 2018 IEEE/ION Position, Location and Navigation Symposium (PLANS), pp. 456-471. IEEE, 2018.en_US
dc.identifier.urihttps://hdl.handle.net/2152/82436
dc.identifier.urihttp://dx.doi.org/10.26153/tsw/9441
dc.language.isoengen_US
dc.publisherIEEE/ION Position, Location and Navigation Symposium (PLANS)en_US
dc.relation.ispartofRadionavigation Laboratory Conference Proceedingsen_US
dc.rights.restrictionOpenen_US
dc.subjecturban vehicular positioningen_US
dc.subjectCDGNSSen_US
dc.subjectlow-cost RTK positioningen_US
dc.titleLow-cost Precise Vehicular Positioning in Urban Environmentsen_US
dc.typeConference paperen_US

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