| Autonomous determination of orbit for probe around asteroids using unscented Kalman filter |
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| 作者姓名： | 崔平远 崔祜涛 黄翔宇 栾恩杰 |
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| 作者单位： | Deep Space Exploration Research Center，Harbin Institute of Technology，Harbin 150001，China，Deep Space Exploration Research Center，Harbin Institute of Technology，Harbin 150001，China，Deep Space Exploration Research Center，Harbin Institute of Technology，Harbin 150001，China，China National Space Administration Beijing 100037 China |
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| 摘 要： | The observed images of the asteroid and the asteroid reference images are used to obtain the probe-to-asteroid direction and the location of the limb features of the asteroid in the inertial coordinate. These information in combination with the shape model of the asteroid and, attitude information of the probe are utilized to obtain the position of the probe. The position information is then input to the UKF which determines the real-time orbit of the probe. Finally, the autonomous orbit determination algorithm is validated using digital simulation. The determination of orbit Using UKF is compared with that using extended Kalman filter (EKF), and the result shows that UKF is superior to EKF.
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Autonomous determination of orbit for probe around asteroids using unscented Kalman filter |
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| CUI Ping-yuan.Autonomous determination of orbit for probe around asteroids using unscented Kalman filter[J].Journal of Harbin Institute of Technology,2003,10(3). |
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| Authors: | CUI Ping-yuan |
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| Affiliation: | 1. Deep Space Exploration Research Center, Harbin Institute of Technology, Harbin 150001, China
2. China National Space Administration, Beijing 100037, China |
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| Abstract: | The observed images of the asteroid and the asteroid reference images are used to obtain the probe-to-asteroid direction and the location of the limb features of the asteroid in the inertial coordinate. These information in combination with the shape model of the asteroid and, attitude information of the probe are utilized to obtain the position of the probe. The position information is then input to the UKF which determines the real-time orbit of the probe. Finally, the autonomous orbit determination algorithm is validated using digital simulation. The determination of orbit Using UKF is compared with that using extended Kalman filter (EKF), and the result shows that UKF is superior to EKF. |
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| Keywords: | unscented Kalman filter extended Kalman filter autonomous determination of orbit probe around asteroids |
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