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LEO-Based Coarse Positioning Through Angle-of-Arrival Estimation of Signals of Opportunity | IEEE Journals & Magazine | IEEE Xplore

LEO-Based Coarse Positioning Through Angle-of-Arrival Estimation of Signals of Opportunity


This work presents a new coarse positioning system for spacecraft in Low Earth Orbit, using real-time Angles-of-Arrival (AoAs) estimation via phase interferometry. Experi...

Abstract:

This work introduces a novel coarse positioning system based on the estimation of the Angles-of-Arrival (AoAs) of Signals of Opportunity from a spacecraft in the Low Eart...Show More

Abstract:

This work introduces a novel coarse positioning system based on the estimation of the Angles-of-Arrival (AoAs) of Signals of Opportunity from a spacecraft in the Low Earth Orbit. The AoA estimation is done in real-time using phase interferometry through a dedicated hardware architecture. The 2D position is achieved by means of a simplified geometrical model based on the estimated angles. The experimental campaign aimed to assess the fit of the proposed model with reality, the AoA estimation accuracy, and the final positioning error. Results showed that the system can track the angular position of a fast-moving spacecraft with a precision of tenths of a degree. The final positioning accuracy demonstrates the effectiveness of the system for real-time coarse positioning.
This work presents a new coarse positioning system for spacecraft in Low Earth Orbit, using real-time Angles-of-Arrival (AoAs) estimation via phase interferometry. Experi...
Published in: IEEE Access ( Volume: 12)
Page(s): 17446 - 17459
Date of Publication: 29 January 2024
Electronic ISSN: 2169-3536

Funding Agency:


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