Skip to Main content Skip to Navigation
Theses

Trajectory-aided GNSS Land Navigation: Application to Train Positioning

Abstract : Over these years, GNSS technology has attracted many attentions around world and it has been widely applied in navigation for airplanes, ground vehicles and boats. On the other hand, advanced railway operating systems have been widely used to guarantee the safety and efficiency of the railway network. The efficiency of these systems is based on the availability of reliable train positioning. Hence, applying GNSS technology to the train positioning is a very promising research area, since it has such important benefits as lower initial costs and lower maintenance. In this thesis, several algorithms are proposed for train positioning by using GNSS signals and the railway centerline stored in the onboard computer database. At first, the train travelled distance, speed are estimated by using GNSS signals and an ''ideal'' railway centerline which is composed of straight line segments, transition curves and arcs of circles. The impact of the railroad curvature on these estimations is studied. Secondly, the train travelled distance, speed are estimated by using GNSS signals and a ''non-ideal'' railway centerline which is defined by a polygonal line with some level of uncertainty. The impact of the track geometric model imprecision on these estimations is studied. Finally, the train travelled distance, speed are estimated by integrating the GNSS measurements with a track database. The impact of the GNSS measurements and the track database errors on these estimations is studied.
Document type :
Theses
Complete list of metadata

Cited literature [56 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/tel-01352620
Contributor : Lionel Fillatre <>
Submitted on : Monday, August 8, 2016 - 4:17:29 PM
Last modification on : Wednesday, June 9, 2021 - 2:41:31 PM

Identifiers

  • HAL Id : tel-01352620, version 1

Collections

CNRS | UTT

Citation

Guoliang Zhu. Trajectory-aided GNSS Land Navigation: Application to Train Positioning. Signal and Image Processing. 2014, 2014. English. ⟨tel-01352620⟩

Share

Metrics

Record views

301

Files downloads

212