Gyro-stellar inertial attitude estimation for satellite with high motion rate
| العنوان: | Gyro-stellar inertial attitude estimation for satellite with high motion rate |
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| المؤلفون: | C.-L. Lin, J.-C. Li, C.-L. Chiu, Y.-W.A. Wu, Y.-W. Jan |
| المصدر: | The Aeronautical Journal. 126:1967-1981 |
| بيانات النشر: | Cambridge University Press (CUP), 2022. |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | Physics::Space Physics, Aerospace Engineering, Astrophysics::Earth and Planetary Astrophysics |
| الوصف: | For a common micro-satellite, orbiting in a circular sun-synchronous orbit (SSO) at an altitude between 500 and 600km, the satellite attitude during off-nadir imaging and staring-imaging operations can be up to ±45 degree on roll and pitch angles. During these off-nadir pointing for both multi-trip operation and staring imaging operations, the spacecraft body is commonly subject to high-rate motion. This posts challenges for a spacecraft attitude determination subsystem called Gyro Stellar Inertial Attitude Estimate (GS IAE), which employs gyros and star sensors to maintain the required attitude knowledge, since star trackers will severely degrade attitude estimation accuracies when the spacecraft is subject to high-rate motion. This paper analyses the star motion-induced errors for a typical star tracker, models the star motion-induced errors to assess the performance impact on the attitude estimation accuracy, and investigates the adaptive extended Kalman filter design in the GS IAE while evaluating its effectiveness. |
| تدمد: | 2059-6464 0001-9240 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::1232dc14231b0c7782dd444a0117d020 https://doi.org/10.1017/aer.2022.38 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........1232dc14231b0c7782dd444a0117d020 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20596464 00019240 |
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