一种卫星钟差估计方法
By employing a satellite clock bias estimation method that combines parallel processing of multiple station clusters with weighted averaging, the problem of low accuracy and inconsistency in traditional single-station cluster estimation is solved, achieving higher accuracy and reliability in satellite clock bias estimation, which is applicable to multiple satellite navigation systems.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HARBIN ENG UNIV
- Filing Date
- 2022-12-03
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional satellite clock error estimation methods are based on single-station clusters, which are easily affected by the quality of observation data, resulting in low accuracy and inconsistency, and cannot meet the requirements of users with high-level navigation performance.
A parallel processing approach using multiple station clusters is adopted. By using batch least squares and weighted averaging, the satellite clock error results of multiple single station clusters are integrated. A dual-frequency ionospheric-free combined observation model is used to constrain the station coordinates and satellite orbits, correcting errors such as solid tide and phase rotation, unifying the reference benchmark, and performing weighted averaging.
It improves the accuracy and reliability of satellite clock bias estimation, enhances computational efficiency, is applicable to multiple satellite navigation systems, and meets the needs of users with high-level navigation performance.
Smart Images
Figure CN115906496B_ABST