Performance Evaluation of GNSS for Train Localization

Lu, Debiao; Schnieder, Eckehard

doi:10.1109/tits.2014.2349353

Cited by 34 publications

(29 citation statements)

References 4 publications

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“…Inside the GNSS community, system performances are qualified by four criteria: availability, continuity, accuracy and integrity. These performances, mainly driven by aeronautics and specified by the ICAO, do not have direct correspondence to railway requirement criteria, usually qualified in terms of reliability, availability, maintainability and safety (RAMS) as represented by [28] on figure 4. A particular example concerns the "integrity" word.…”

Section: A How To Qualify Required Gnss Performances In the Railwaymentioning

confidence: 99%

A Survey of GNSS-Based Research and Developments for the European Railway Signaling

Marais

Beugin

Berbineau

2017

IEEE Trans. Intell. Transport. Syst.

109

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Railways have already introduced satellite-based localization systems for non-safety related applications. Driven by economic reasons, the use of these systems for new services and, in particular, their introduction in signaling system is seriously investigated today and tested all around the world. Because of the weight of their history, their strong normative context and the high requested level of safety, the introduction is relatively slow. The aim of this paper is to provide a survey of past and current programs dealing with GNSS (Global Navigation Satellite Systems) as a basis to introduce main issues relative to context, standards, performance requirements and safety proofs. Links with aeronautical concepts are also presented, illustrating the transposable principles and the limits due to the land transport environment.

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Section: A How To Qualify Required Gnss Performances In the Railwaymentioning

confidence: 99%

A Survey of GNSS-Based Research and Developments for the European Railway Signaling

Marais

Beugin

Berbineau

2017

IEEE Trans. Intell. Transport. Syst.

109

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“…The normalized earth field corresponds to the (unknown) position of factory calibration. The signal of the magnitude indicates the resulting magnetic fields by superposition as described in (2). The cabin sensor shows a significant attenuation compared to the bogie signal.…”

Section: Magnetic Data Setmentioning

confidence: 99%

“…Global Navigation Satellite System (GNSS) position measurements are useful for train localization, but satellite geometry or reception can be poor or not available parts of the railway environment. A stand-alone GNSS receiver cannot fulfill the requirements for safety-of-life train localization, in particular in parallel track scenarios and in tunnels [2]. Therefore, onboard train localization is often addressed by multisensor approaches as in [1,3,4].…”

Section: Introductionmentioning

confidence: 99%

Study of Train-Side Passive Magnetic Measurements with Applications to Train Localization

2017

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Passive magnetic sensors measure the magnetic field density in three axes and are often integrated on a single chip. These low-cost sensors are widely used in car navigation as well as in battery powered navigation equipment such as smartphones as part of an electronic compass. We focus on a train localization application with multiple, exclusively onboard sensors and a track map. This approach is considered as a base technology for future railway applications such as collision avoidance systems or autonomous train driving. In this paper, we address the following question: how beneficial are passive magnetic measurements for train localization? We present and analyze measurements of two different magnetometers recorded on a regional train at regular passenger service. We show promising correlations of the measurements with the track positions and the traveled switch way. The processed data reveals that the railway environment has repeatable, location-dependent magnetic signatures. This is considered as a novel approach to train localization, as the use of these magnetic signals at first view is not obvious. The proposed methods based on passive magnetic measurements show a high potential to be integrated in new and existing train localization approaches.

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“…In railway system applications, the SF-based localization method was first introduced in [6] using linear Kalman filter (KF) framework. Various SF-based localization methods were subsequently developed using such methods as extended Kalman filter (EKF) [7] and its combination with GNSS [8]- [10], map matching [11], probabilistic weighted fusion [12], visual-aided odometry [13], particle filtering [14] and probabilistic data fusion [15]. See e.g.…”

Section: Introductionmentioning

confidence: 99%

An Unscented Kalman Filter-based Synchronization Control Approach for Communication-Based Train Control Systems

Faruqi

Waluya

Nazaruddin

et al. 2019

Int. J. Adv. Sci. Eng. Inf. Technol.

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Communication-based train control (CBTC) system is an advanced train signalling and control technology which is developed using the moving block signalling (MBS) framework. The CBTC system has been shown to be capable of improving the operational efficiency, line capacity and safety of the railway operation. The main objective in implementing the MBS framework in CBTC system is to minimize the train headways through the utilization of an inter-train continuous communication system that determine and control the position of each train more precisely. One important challenge in such an implementation is the fulfillment of the necessary requirement of having highly accurate train localization method to ensure the safety of the short headway operation. This paper describes the results from experimental examination and application of a synchronization control strategy for the CBTC system using an unscented Kalman filter (UKF)-based sensor fusion approach as the localization method. In the proposed approach, the train localization task is performed using an UKF-based sensor fusion method which fuses measurement data from speed sensors and radio frequency identification tags. A synchronization control approach to ensure the safety movement of the train convoy in curved railway tracks under the MBS scheme is then proposed. The results presented in this paper show that the proposed localization and synchronization control methods can significantly improve the localization accuracy and reduce the inter-train headways.

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Performance Evaluation of GNSS for Train Localization

Cited by 34 publications

References 4 publications

A Survey of GNSS-Based Research and Developments for the European Railway Signaling

A Survey of GNSS-Based Research and Developments for the European Railway Signaling

Study of Train-Side Passive Magnetic Measurements with Applications to Train Localization

An Unscented Kalman Filter-based Synchronization Control Approach for Communication-Based Train Control Systems

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