Journal of Positioning, Navigation, and Timing

  • 제13권3호
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  • Pages.309-317
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  • 2024
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  • 2288-8187(pISSN)
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  • 2289-0866(eISSN)
항법시스템학회 (The Institute of Positioning, Navigation, and Timing)
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지역적 수신기 네트워크에서 Kalman 필터를 사용한 상대적인 GPS/Galileo 위성 및 수신기 IFB 추정

Estimation of the Relative GPS/Galileo Satellite and Receiver IFBs using a Kalman Filter in a Regional Receiver Network

  • 김희성 ;
  • 손민혁
  • Heesung Kim (Satellite Navigation R&D Division, Korea Aerospace Research Institute) ;
  • Minhyuk Son (Satellite Navigation R&D Division, Korea Aerospace Research Institute)
  • 투고 : 2024.08.15
  • 심사 : 2024.08.30
  • 발행 : 2024.09.15
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초록

Satellite and receiver Inter-Frequency Biases (IFBs) should be estimated or calibrated by pre-defined values for generating precise navigation messages and augmentation data in satellite navigation systems or the augmentation system. In this paper, a Kalman filter is designed and implemented to estimate the ionospheric delay and satellite/receiver IFBs using a regional receiver network. First, an ionospheric model and its filter parameter is defined based on previous studies. Second, a measurement model for estimating the relative satellite/receiver IFBs without any constraints is proposed. Third, a procedure for ensuring the continuity of estimation is proposed in this paper. To verify the performance of the designed filter, six Continuously Operating Reference Stations (CORSs) are selected. Finally, the stability and accuracy of satellite/receiver IFB estimation are analyzed.

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과제정보

본 연구는 국토교통부 위성항법보정시스템 안전운용기술개발사업 연구비지원 (RS-2021-KA164208)에 의해 수행되었습니다.

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