Interoperability test analysis between EGNOS and MSAS SBAS systems

摘要

Europe, US/Canada and Japan are currently developing their own regional Satellite Based Augmentation Systems (SBAS). Although all SBAS are regional systems, the necessity to establish adequate ways for co-operation and co-ordination among the different SBAS providers is recognised, in order to provide SBAS interoperability. Interoperability implies a large variety of complex issues (such as certification, standards, safety, operations,.. .), including technical interoperability options. A quite complete interoperability test activity has been defined between EGNOS and MSAS service providers. In particular, real data has been simultaneously collected from : the reference stations of the EGNOS System Test Bed (ESTB), the Japanese ENRIGNSS Test System, real commercial flights equipped with SAPPHIRE receivers [9] and IGS stations. In parallel, these scenarios have been evaluated considering simulated data. The main objectives of these tests are to propose recommendations for the design of SBAS systems and the evaluation of performances in the interoperability area.