Optimal Parameter Inflation to Enhance the Availability of Single-Frequency GBAS for Intelligent Air Transportation
Abstract
Ground-based Augmentation System (GBAS) augments Global Navigation Satellite Systems (GNSS) to support the precision approach and landing of aircraft. To guarantee integrity, existing single-frequency GBAS utilizes position-domain geometry screening to eliminate potentially unsafe satellite geometries by inflating one or more broadcast GBAS parameters. However, GBAS availability can be drastically impacted in low-latitude regions where severe ionospheric conditions have been observed. Thus, we developed a novel geometry-screening algorithm in this study to improve GBAS availability in low-latitude regions. Simulations demonstrate that the proposed method can provide 5-8 percentage point availability enhancement of GBAS at Galeão airport near Rio de Janeiro, Brazil, compared to existing methods.
- Publication:
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arXiv e-prints
- Pub Date:
- November 2021
- DOI:
- arXiv:
- arXiv:2111.01953
- Bibcode:
- 2021arXiv211101953L
- Keywords:
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- Electrical Engineering and Systems Science - Systems and Control;
- Electrical Engineering and Systems Science - Signal Processing
- E-Print:
- Submitted to IEEE Transactions on Intelligent Transportation Systems