The Global Positioning System (GPS) has an increasing role in air traffic control systems. However, the ionosphere may produce severe effects on the propagation of GPS signals. Consequently, the ionospheric effects cause positioning error that degrades the accuracy, performance and availability to support the phases of approach, landing, departure and surface operations of the aircraft, particularly in the equatorial and low-latitude regions. Different techniques and auxiliary systems have been developed to meet the safety requirements of aviation. For example, Ground Based Augmentation Systems (GBAS) provide higher accuracy for differential corrections. Differential corrections allow an aircraft approaching an airport to correct satellite navigation signals, removing spatially correlated errors. In addition, integrity parameters allow the aircraft system to calculate the limits of residual position errors and ensure safe operation.
Ionospheric Gradients Assessment for GBAS operations in Low-latitude Regions
2024-01-09
138752 byte
Conference paper
Electronic Resource
English
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