![]() ![]() The group of external factors such as architecture of GNSS systems in multiconstellation approach, influences the positioning accuracy by laws of physics, dynamics ionosphere and troposphere, and electromagnetic phenomena. In such approach, it is necessary to consider the interplay of many qualitatively different factors, which act simultaneously and cause significant errors in positioning. ![]() In the interdisciplinary EGALITE project, the innovative technologies originated from ICT are studied, varying from the on-ground precise positioning using GNSS and other sensors (for example in inertial navigation) as well as application of GNSS to vertical guidance in aviation in order to increase safety of the close-to-ground operations of helicopters. The example of the first is the European Positioning (EUPOS) network delivering correction signals by radio, the example of the second is WAAS in the USA or EGNOS, a common project of European Union, European Space Agency (ESA) and European Organization for the Safety of Air Navigation (EUROCONTROL). Additionally to single constellation signal, the more accurate localization can be achieved in Ground Based Augmenting System (GBAS) or Satellite Based Augmenting System (SBAS). 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 responsible for the safe use of satellite navigation in European civil aviation. ![]() The database and the GPS3D Viewer are designed and functionally extended using the most recent software development technologies for continuous storing, administrating and post-processing of the EGNOS signal data. The software package is also integrated with PEGASUS, a program authorized by EUROCONTROL organization. The project started with enhancements 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. ![]() The plenary lecture presents applications of contemporary multiconstellation GNSS in aviation and terrestrial applications based research performed within the EGALITE project (funded by European Union, whose foundations arose from EDCN (EGNOS Data Collection Network) and the ability offered by innovative Virtual Flying Laboratory (VFL) at Silesian University of Technology. Recently, Russia implemented its own GNSS called GLONASS and China develops system called BeiDou (Chinese name of the Big Dipper constellation used for navigation, and hence, having metaphoric meaning: Compass). It is also well known that European Union decided to launch its own GNSS program called Galileo, however it is still far from operational phase. It is composed not only of American GPS, but also of additional constellations used for corrections of the signal, such as for example: Wide Area Augmentation System (WAAS) in the USA, or European Geostationary Navigation Overlay Service (EGNBOS) in Europe. Currently, we can talk about multiconstellation GNSS. Its use extended also to map making and land surveying and today’s uses of it go further beyond the preliminary applications. This technology became an essential component for modern navigation on land, water and air. Global Navigation Satellite Systems Applications in Modern Aviation and Terrestrial Applicationsĭirector of the Virtual Flying Laboratory (VFL)Į-mail: Global navigation satellite systems (GNSS) have become present in virtually all areas of social, commercial and private life. ![]()
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