High precision positioning using vehicle trajectory in urban area

Map Matching (MM) algorithms are usually employed for a range of transport telematics applications to correctly identify the physical location of a vehicle travelling on a road network. Two essential components for MM algorithms are (1) navigation sensors such as the Global Positioning System (GPS) and dead reckoning (DR), among others, to estimate the position of the vehicle, and (2) a digital base map for spatial referencing of the vehicle location. Previous research by the authors (Quddus et al., 2003; Ochieng et al., 2003) has developed improved MM algorithms that take account of the vehicle speed and the error sources associated with the navigation sensors and the digital map data previously ignored in conventional MM approaches. However, no validation study assessing the performance of MM algorithms has been presented in the literature. This paper describes a generic validation strategy and results for the MM algorithm previously developed in Ochieng et al. (2003). The validation technique is based on a higher accuracy reference (truth) of the vehicle trajectory as determined by high precision positioning achieved by the carrier-phase observable from GPS. The results show that the vehicle positions determined from the MM results are within 6 m of the true positions. The results also demonstrate the importance of the quality of the digital map data to the map matching process.

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Multi-GNSS Dynamic High Precision Positioning in Urban Environment

Proceedings of the 30th International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS+ 2017) ◽

10.33012/2017.15197 ◽

2017 ◽

Cited By ~ 1

Author(s):

Javier M�guez ◽

Jos� V. Perello Gisbert ◽

J.A. Garcia-Molina ◽

Paolo Zoccarato ◽

Paolo Crosta ◽

...

Keyword(s):

Urban Environment ◽

High Precision ◽

Precision Positioning

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High-Precision Positioning of Galvano Scanners by Structural Design Using Node of Vibration Modes

IEEJ Transactions on Industry Applications ◽

10.1541/ieejias.131.275 ◽

2011 ◽

Vol 131 (3) ◽

pp. 275-282

Author(s):

Kenta Seki ◽

Hiroaki Matsuura ◽

Makoto Iwasaki ◽

Hiromu Hirai ◽

Soichi Tohyama

Keyword(s):

High Precision ◽

Structural Design ◽

Vibration Modes ◽

Precision Positioning

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The Main Results Of Developings Made By Kharkov University’s And the Ukrainian National Observatory’s Research Groups In the Field Of High-Precision Positioning, 2011-2012

Geodesy and Cartography ◽

10.22389/0016-7126-2012-38-50 ◽

2012 ◽

Vol 870 (13) ◽

pp. 38-50

Author(s):

A.A. Zhalilo ◽

◽

A.A. Zhelanov ◽

D.A. Shelkovenkov ◽

I.V. Ditskii ◽

...

Keyword(s):

High Precision ◽

Research Groups ◽

Precision Positioning

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Communications and High-Precision Positioning (CHP2): Secure Traffic and Resource Management Using Reinforcement Learning

2020 AIAA/IEEE 39th Digital Avionics Systems Conference (DASC) ◽

10.1109/dasc50938.2020.9256573 ◽

2020 ◽

Author(s):

Owen Ma ◽

Andrew Herschfelt ◽

Hanguang Yu ◽

Shunyao Wu ◽

Sharanya Srinivas ◽

...

Keyword(s):

Reinforcement Learning ◽

Resource Management ◽

High Precision ◽

Precision Positioning

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Design, Analysis and Test of a Hyperbolic Magnetic Field Voice Coil Actuator for Magnetic Levitation Fine Positioning Stage

Energies ◽

10.3390/en12101830 ◽

2019 ◽

Vol 12 (10) ◽

pp. 1830

Author(s):

Yiheng Zhou ◽

Baoquan Kou ◽

He Zhang ◽

Lu Zhang ◽

Likun Wang

Keyword(s):

Magnetic Field ◽

High Precision ◽

Magnetic Levitation ◽

Structural Parameters ◽

Industrial Applications ◽

Degree Of Freedom ◽

Force Density ◽

Precision Positioning ◽

Element Analysis ◽

Voice Coil Actuator

The multi-degree-of-freedom high-precision positioning system (MHPS) is one of the key technologies in many advanced industrial applications. In this paper, a novel hyperbolic magnetic field voice coil actuator using a rhombus magnet array (HMF-VCA) for MHPS is proposed. Benefiting from the especially designed rhombus magnet array, the proposed HMF-VCA has the advantage of excellent force uniformity, which makes it suitable for multi-degree-of-freedom high-precision positioning applications. First, the basic structure and operation principles of the HMF-VCA are presented. Second, the six-degree-of-freedom force and torque characteristic of the HMF-VCA is studied by three-dimensional finite element analysis (3-D FEA). Third, the influence of structural parameters on force density and force uniformity is investigated, which is conducive to the design and optimization of the HMF-VCA. Finally, a prototype is constructed, and the comparison between the HMF-VCA and conventional VCAs proves the advantage of the proposed topology.

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