저궤도 위성용 온보드에 탑재된 항법 센서들을 결합하여 위성의 실시간 궤도 결정에 대한 연구가 활발히 진행되고 있다. 본 연구는 저궤도 위성 환경을 구축하여 Inertial Navigation System (INS) Mechanization 을 수행하고 Global Navigation Satellite System (GNSS) 위치 및 속도 정보와 결합하는 약결합 칼만필터를 설계한다. 이를 통해, 저궤도 위성용 GNSS/IMU 약결합 시스템의 적용 가능성을 제시한다.

Kalman Filter for Loosely Coupled GNSS/IMU Integration in Low Earth Orbit Satellites

Wook-Jin Yang, Yuna Jeong, Jin-Su Han, Yong-Hui Park, Jong-Hoon Won*

Research on real-time orbit determination of satellites through the integration of onboard navigation sensors for low Earth orbit (LEO) satellites has been actively conducted. In this study, a low Earth orbit simulation environment is constructed to implement Inertial Navigation System (INS) mechanization, and a loosely coupled Kalman filter is designed by integrating position and velocity information from the Global Navigation Satellite System (GNSS). Through this approach, the applicability of a GNSS/IMU loosely coupled system for LEO satellites is demonstrated.

Keywords: GNSS/INS, loosely coupled integration, mechanization

Speaker 양욱진 인하대학교