The performance of the 40 bit frame synchronization sequence adopted for ATCS (automatic train-control systems) is examined in detail. A general expression is derived for the probability of synchronization as a function of the bit error and erasure probability, the overlap n, and the number of bit errors/erasures which are tolerated in the frame sync word. The probability PD of successful frame sync with errors-and-erasures decoding is compared to PD with errors-only decoding. For a given bound on false alarms, a significant improvement in PD is found on random error channels if the receiver contains an erasure zone. An improved frame synchronization scheme which uses the preamble is shown to follow a higher error tolerance for a given false-alarm probability, and thus a higher PD.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Performance of frame synchronization in automatic train control communications systems


    Additional title:

    Eigenschaften der Rahmensynchronisation bei automatischen Zug-Kommunikationssystemen


    Contributors:


    Publication date :

    1989


    Size :

    6 Seiten, 11 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





    Automatic train control systems

    Engineering Index Backfile | 1922


    Enhancing Communication-Based Train Control Systems Through Train-to-Train Communications

    Wang, Xiaoxuan / Liu, Lingjia / Tang, Tao et al. | IEEE | 2019


    Upgrading Automatic Train Control Systems

    Incorvati, Mark V. | ASCE | 2016