The development of future navigation systems like GALILEO and the continually increasing application of satellite navigation systems (e.g. traffic control and management, position related information systems) are the cause of an increased need of suitable software simulation tools. Since 1997 the DLR has intensified its activities to develop a GNSS end-to-end software simulation system for validation and consultation purposes. The NAVSIM software simulation system consists of two levels: the signal simulation level (SSL) and the application simulation level (ASL). Both levels are necessary to determine the positioning performance of a global navigation satellite system (GNSS) under consideration of nearly realistic conditions. The subdivision in two levels is the base to gather a suitable handling of the system complexity based on reproduced transmission processes with the serious different bandwidths and time scales (e.g. like signal generation, spatial and temporal variation of propagation errors and receiver type dependent derivation of range and phase measurements). A short description of the architecture of the simulation system and the corresponding signal and parameter flow are given in the paper. The basic system can operate in several modes.For each mode a simulation example is given, based on a well-defined specified simulation task.


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    Titel :

    Capability of the SW simulation system developed by the DLR in the project NavSim


    Weitere Titelangaben:

    Leistungsumfang des von der DLR im Rahmen des NavSim-Projektes entwickelten Softwaresimulationssystems


    Beteiligte:
    Engler, E. (Autor:in)


    Erscheinungsdatum :

    2000


    Format / Umfang :

    10 Seiten, 11 Bilder, 1 Tabelle, 13 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch