Synthetic aperture radar in a near-zero inclination almost circular geosynchronous orbit: mission analysis and orbit maintenance

Francesca Pelliccia; Maria Daniela Graziano; Antonio Moccia; Alfredo Renga; Matteo Monti; Andrea Monti Guarnieri; Giovanni Paolo Blasone; Simona Zoffoli; Deodato Tapete

doi:10.1117/12.3033988

20 November 2024 Synthetic aperture radar in a near-zero inclination almost circular geosynchronous orbit: mission analysis and orbit maintenance

Francesca Pelliccia, Maria Daniela Graziano, Antonio Moccia, Alfredo Renga, Matteo Monti, Andrea Monti Guarnieri, Giovanni Paolo Blasone, Simona Zoffoli, Deodato Tapete

Author Affiliations +

Proceedings Volume 13192, Sensors, Systems, and Next-Generation Satellites XXVIII; 131920R (2024) https://doi.org/10.1117/12.3033988
Event: Remote Sensing, 2024, Edinburgh, United Kingdom

Abstract

The Geostationary Synthetic Aperture Radar (GEOSAR) concept, first proposed in 1978, aims at defining an Earth Observation system able to provide regional coverage with large swaths, subcontinental access with very short revisit time, and quasi-persistent monitoring capabilities, by exploiting the unique characteristics of the GEO orbit. These peculiar characteristics make GEOSAR suitable to perform imaging and interferometry intended for the observation of fastevolving large-scale phenomena, such as ground motion in natural and urban environments. However, stable acquisition configurations that such applications require, are affected, even on the short-time scale, by the GEO perturbing forces. Therefore, a specific control strategy must be implemented to ensure small cross-track baselines and maximum Doppler bandwidth overlap between subsequent acquisitions. The paper proposes a novel orbit maintenance strategy tailored for GEOSAR. It assesses the near-zero inclination GEOSAR feasibility considering interferometric requirements and International Telecommunication Union (ITU) regulations compliance, demonstrating that the overall delta-V budget of the mission remains similar to that of standard GEO satellites.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Francesca Pelliccia, Maria Daniela Graziano, Antonio Moccia, Alfredo Renga, Matteo Monti, Andrea Monti Guarnieri, Giovanni Paolo Blasone, Simona Zoffoli, and Deodato Tapete "Synthetic aperture radar in a near-zero inclination almost circular geosynchronous orbit: mission analysis and orbit maintenance", Proc. SPIE 13192, Sensors, Systems, and Next-Generation Satellites XXVIII, 131920R (20 November 2024); https://doi.org/10.1117/12.3033988

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