Simulation study demonstrates enhanced space-based aircraft tracking via amplitude tapering and advanced decoding, indicating up to 49% higher detection reliability in dense traffic.
Key Points
To evaluate beamforming techniques and signal decoding strategies for improving space-based ADS-B message detection in dense continental airspace.
Formulated an interference model to quantify the impact of antenna sidelobe levels on low-SNR aircraft signal reception.
Integrated amplitude tapering to suppress sidelobes, edge beam oversampling for diversity, and a maximum a posteriori decoder designed to resolve single strong packet collisions.
Evaluated performance using numerical simulations comparing the proposed scheme against a standard uniform beam grid with basic interference-as-noise decoding.
Demonstrated improvements of up to 49% in the proportion of aircraft meeting specified position update interval probabilities.
Achieved an effective extension in satellite coverage area compared with a standard uniform beam grid baseline across evaluated traffic scenarios.