Due to growing amount of air traffic at Riga International Airport it is necessary to expand and improve infrastructure of Riga airport. There are several new projects planned, including new buildings, which possibly might affect Instrument Landing System Localizer (ILS LLZ) signal accuracy, thus, reducing aircraft position determination while approaching a runway. This paper examines, how new airport projects, such as RailBaltica, new air traffic control (ATC) tower and airport Terminal 6 building might affect ILS LLZ signal accuracy. Using special software ATOLL (Advanced Training on Localizer) different scenarious have been analyzed. Principles of physical optics have been used to determine ILS LLZ difference in depth of modulation (DDM) deviation from zero, which marks runway centerline. It has also been taken into account that during construction work it will be necessary to use a crane, which also might affect ILS LLZ signal accuracy. Different crane positions in respect to the runway have also been played. The outcome of each scenario is a diagram with particular DDM values and also analysis, which proves, whether the situation is acceptable or not in terms of signal accuracy and safety.


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    Title :

    Case Study for Riga International Airport Modernization: ILS Localizer Signal Accuracy Depending on Ground Obstacles Located Nearby


    Additional title:

    Lect. Notes in Networks, Syst.



    Conference:

    International Conference on Reliability and Statistics in Transportation and Communication ; 2020 ; Riga, Latvia October 14, 2020 - October 17, 2020



    Publication date :

    2021-02-07


    Size :

    11 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




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