Community Research and Development Information Service - CORDIS

EGNOS test and demonstration campaign

The European Commission, DG VII, has published an invitation to tender related to a test and demonstration campaign for the European geostationary navigation overlay service (EGNOS).

This is related to work on a global navigation satellite system (GNSS), an initiative to create a seamless global navigation and positioning system using satellite-based signals which meets civilian users' needs in a cost-effective way.

GNSS1 is a combination of the American GPS, the Russian GLONASS and three interoperable satellite-based augmentation systems developed by the US (WAAS), Japan (MSAS) and Europe (EGNOS).

The role of EGNOS will be to augment the performance of these systems by improving their accuracy, integrity, continuity and availability. As such EGNOS will be a key element of the integrated European network of navigation and positioning. The European Commission is involved in the EGNOS programme through several TEN-Telecom activities, as is the European Space Agency, which is developing an EGNOS test-bed (ESTB).

The first version of the ESTB is expected to be available in December 1999. It has been designed to provide an EGNOS-like signal in space, including ranging, integrity and wide-area differential.

The European Commission is building on the ESA's activity, developing an extra-European transportable extension of the ESTB, called the ISTB (international satellite test bed). The monitoring unit will then be used to assess the performance achieved. ISTB should be available a few months after ESTB, in March 2000.

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