Relative Navigation of Satellites Flying in Formation Using UKF and LKF
11th International Conference on Recent Advances in Air and Space Technologies, Conference Program, RAST 2026, İstanbul, Türkiye, 13 - 15 Mayıs 2026, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Doi Numarası: 10.1109/rast69551.2026.11672382
- Basıldığı Şehir: İstanbul
- Basıldığı Ülke: Türkiye
- Anahtar Kelimeler: hill clohessy wiltshire, linear kalman filter, multi-satellite mission, unscented kalman filter
- İstanbul Gelişim Üniversitesi Adresli: Evet
Özet
Precise relative navigation is essential for sustainable satellite missions. This study proposes a hybrid estimation framework that integrates Unscented and Linear Kalman Filters for relative state determination. Absolute orbital states are estimated from Global Navigation Satellite System (GNSS) measurements using an Unscented Kalman Filter(UKF), while relative motion is modeled with the Hill-Clohessy-Wiltshire (HCW) equations in the Local-Vertical Local-Horizontal (LVLH) frame and refined using a Linear Kalman Filter (LKF). Simulation results confirm that the proposed UKF-LKF architecture improves relative state estimation accuracy and robustness, enabling reliable autonomous formation-flying missions.