Local Monitoring of EGNOS Services

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Abstract

Any SBAS system, as soon as it is permanently monitored by Earth stations, should deliver to the users correct information about quality of the augmented system. According to many sources of information, among them observations of authors, present accuracy of EGNOS service has accuracy about 1,5m (95%), but availability of the service is still controversial. First of all the quality of the system is guaranteed only inside the border of the system coverage which still do not affect all territory of European Union, however observed accuracy at times is better outside this area than next door to the RIMS station. In addition there are evidences that availability has random character and essential differences as well as lack of correlation of this parameter in the different point of observations has been observed. So in author’s opinion Local Monitoring of EGNOS service can contribute to better confidence of local users, especially in critical operations, like for example berthing of big ships or landing operations with EGNOS procedures. The example of EGNOS monitor which is working in real time and performed by the authors will be presented

References
  • [1] EGNOS - A Cornerstone of Galileo, 2007, SP-1303. ESA.

  • [2] EGNOS Monthly Performance Report March 2012 (essp_drd_6694_01_00_ publicreport_march2012.pdf), http://www.essp-sas.eu/monthly_performance_reports (17.04.2012).

  • [3] EGNOS Safety of Life Service Definition Document (2011), European Commission, Directorate-General for Enterprise and Industry.

  • [4] EGNOS Service Definition Document, 2009, Ref.: EGN-SSD OS v 1.0. Open Service, European Commissio,. Directorate-Generale for Energy and Transport.

  • [5] Federal Radionavigation Plan 2008, National Technical Information Service, Springfield, DOT-VNTSC-RITA-08-02/DoD-4650.5.

  • [6] Felski A., EGNOS Usefulness in Harbor Operations, MT2012 Conference, Barcelona.

  • [7] Felski A., Nowak A., Investigation of EGNOS Availability on the East Border of the System Coverage, ENC 2011 Conference, London.

  • [8] Felski A., Nowak A., Woźniak T., Accuracy and Availability of EGNOS - Results of Observations, Artifficial Satellites, 2011, Vol. 46, No. 3, pp. 111-118.

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