Data Gathering and 3D-visualization at OLEG Multiconstellation Station in EDCN System

The paper presents an application of a software package for gathering in MS SQL database the high-throughput satellite navigation data, which is integrated with 3D visualization module GPS3D Viewer, developed by us as a part of Pan-European distributed system working under EGNOS Data Collection Network (EDCN). The software package is also integrated with PEGASUS, a program authorized by EUROCONTROL organization. The database and the GPS3D Viewer installed at OLEG station are designed and implemented using the most recent software development technologies for continuous storing, administrating and post-processing of the EGNOS signal data. Their operation within distributed, Pan-European EDCN system has already made possible detection of important but rare events, such as sudden accuracy degradation, subject for further identification by EUROCONTROL, an organization, which is responsible for the safe use of satellite navigation systems in European civil aviation.