Jamming to satellite navigation signals has become a major threat to the safety critical train control systems using Global Navigation Satellite System (GNSS), where the Virtual Balise (VB) concept enables a specification-compatible solution to utilize GNSS and reduce the physical Balises. This paper presents a novel GNSS jamming detection and exclusion solution to achieve trustworthy capture of VBs. An advanced architecture of Virtual Balise Reader (VBR) is proposed by integrating an Interference Qualifier Module (IQM) into the conventional GNSS-enabled VB framework. To enhance the trustworthiness of the VB capture, the IQM detects and identifies the existence of interference by examining the residuals between the real and predicted GNSS pseudo-ranges, which are generated by the odometry data and the trackmap. A discrimination test approach is utilized to evaluate the availability of raw satellite measurements according to the statistical analysis. We embed the performance indicator for each pseudo-range into the VB capture logic to isolate the degraded measurements and, meantime, adopt an adaptive Capture Interval Limit (CIL) to avoid the unexpected missed capture. Data sets from a GNSS jamming injection-based test platform are used for comparative studies, demonstrating the necessity and superiority of the proposed solution in improving the interference protection capability and trustworthiness of VB capture under the GNSS jamming environment.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    GNSS Jamming Detection and Exclusion for Trustworthy Virtual Balise Capture in Satellite-Based Train Control


    Contributors:
    Liu, Jiang (author) / Cai, Bai-Gen (author) / Wang, Jian (author) / Lu, De-Biao (author)

    Published in:

    Publication date :

    2022-12-01


    Size :

    5601307 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Computer and microwave balise train control

    Hiraguri, Shigeto / Nishibori, Noriyuki | IuD Bahn | 2004


    Protecting Train Balise Telegram Data Integrity

    Guo, Huaqun / Wei Sim, Jonathan Zhi / Veeravalli, Bharadwaj et al. | IEEE | 2018


    TOTAL CONTROL SYSTEM AND METHOD OF TRAIN BASED BALISE

    KANG LEE TEAG / LEE HAK SUN / KIM JAE NAM et al. | European Patent Office | 2015

    Free access

    Development of train detection system by microwave balise

    Nishibori, Noriyuki / Sasaki, Tatsuya / Hiraguri, Shigeto | IuD Bahn | 2002


    Introduction of GNSS in Railway Safety of Life Applications: Virtual Balise Detection in ERTMS

    Azaola, Miguel / Fidalgo, Javier / Barrios, Julián et al. | British Library Conference Proceedings | 2018