GNSS introduction in the aviation sector
Background & Objectives
For some time, ICAO has stated the recommendation to make the most extensive use of the available satellite technology for navigation and communications. The CNS/ATM concept was understood as technical (CNS) and operational (ATM) components of the global system. It envisages the Global Navigation Satellite System (GNSS) as the main navigation system including satellite constellations, aircraft receivers and system integrity monitoring, augmented as necessary to support the required navigation performance (RNP) for specific phases of flight. However, it is also recognised that GNSS have inherent vulnerabilities that have to be investigated, mitigated and solved. Following the ICAOâ€™s recommendation and the Council Conclusions regarding the use of EGNOS in the aviation domain, EUROCONTROL has included the introduction of APV operations based on EGNOS as one of its implementation objectives (ECIP). Thus, the GIANT project will continue some of the many activities that were begun for Galileo in earlier phases (e.g. GALILEI, GALA, SAGA, GILT and GEM).
Work performed & results
The main results will be proposals and solutions for GNSS operational implementation, legal aspects and onboard and ground elements of GNSS, especially issues regarding: 1. Definition and validation of new GNSS approach and landing procedures, LPV approach procedures for Valencia, San Sebastian and Bologna airports (for aircraft) and Lausanne and North Sea oilrigs helipads (for helicopters). 2. Enabler and action plan for the GNSS operational implementation, addressing the open points and the risk mitigation for the short term and medium to long term. 3. Development of innovative applications that could be supported by GNSS. 4. Required technological developments (user terminal and local elements) which allow flying these new GNSS procedures. 5. Assessment of the new GNSS approach procedures and its technical suitable implementation in terms of operational, safety, environmental and economic benefits. 6. Demonstration of the feasibility and â€˜flyabilityâ€™ of the studied GNSS approach procedures through flight trials, flight demonstrations and simulation campaigns. 7. Study of the impact of these new GNSS techniques in the current legal frame and recommendations for regulatory procedures. In particular, the technologies and concepts involved in the GIANT project would allow aviation operations in areas with poor navigation infrastructures, while the technologies and concepts involved in the GIANT project will also derive in an enhancement of the approach operations, in terms of: - Lower noise impact; - More efficient routes and fuel and emissions savings.