A Time Delay/Star Angle Integrated Navigation Method Based on the Event-Triggered Implicit Unscented Kalman Filter

Time delay is a novel celestial navigation measurement that can provide the distance information of the spacecraft relative to the nearby celestial body. Combining time delay measurement with traditional star angle measurement can greatly improve navigation performance. However, the navigation accur...

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Veröffentlicht in:	IEEE transactions on instrumentation and measurement 2021, Vol.70, p.1-10
Hauptverfasser:	Gui, Mingzhen, Zhao, Dang-Jun, Ning, Xiaolin, Zhang, Chengxi, Dai, Ming-Zhe
Format:	Artikel
Sprache:	eng
Schlagworte:	Celestial navigation Delay effects ephemeris error event-triggered mechanism Extraterrestrial measurements implicit unscented Kalman filter (IUKF) Kalman filters Mars Mars exploration Navigation Position errors Satellites Space vehicles State vectors Time lag Time measurement Velocity errors
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