Data Collection Network

The EGNOS Signal-in-Space (SIS) Validation (ESV) Task Force has been established by the Eurocontrol Navigation Domain to coordinate (technical) activities necessary to assess the performance achievable with a Minimum Operation Performance Standards (MOPS) compliant receiver over the European Civil Aviation Conference (ECAC) Area. The objective of this performance assessment is to support the use of EGNOS as a navigation means to provide guidance up to the so-called APV-I and APV-II approach operations (APV = Precision Approach with Vertical Guidance). The ESV-Task Force will coordinate and agree with the EGNOS Certification Task Force the required input to provide evidence that the EGNOS SIS meets integrity and continuity requirements and can be used for safety critical applications.

In the frame of these activities Eurocontrol has established a standardized data collection environment to perform continuous EGNOS performance monitoring. Next to European Air Traffic Service Providers (ATSP), six universities, geographically distributed around Europe, are involved in the validation task. The added value of this work, in addition to the EGNOS system verification activities, lies in the independence of the data collection sites with respect to the Ranging and Integrity Monitoring Stations (RIMS) locations and a greater diversity of the receivers and analysis tools.

The actual achieved performance in each location is assessed (thereby using the accurately known location of the monitor station) and the performance is checked against the Required Navigation Performance (RNP) requirements (Accuracy, Availability, Integrity and Continuity of service). In addition any anomalies identified are analysed in detail to assess the cause, the probability of re-occurrence and possible mitigation techniques from the user side.

List of participants

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