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Autonomous determination of orbit for probe around asteroids using unscented Kalman filter 被引量:1

Autonomous determination of orbit for probe around asteroids using unscented Kalman filter
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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 informa-tion in combination with the shape model of the asteroid and attitude information of the probe are utilized to ob-tain the position of the probe. The position information is then input to the UKF which determines the real-timeorbit 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 resultshows that UKF is superior to EKF. 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.
出处 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2003年第3期229-234,共6页 哈尔滨工业大学学报(英文版)
关键词 探测环绕小行星 自主轨道确定 无线索卡尔曼滤波器 扩展卡尔曼滤波器 unscented Kalman filter extended Kalman filter autonomous determination of orbit probe around asteroids
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参考文献16

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二级参考文献17

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共引文献10

同被引文献4

  • 1Greg Welch,Gary Bishop.An Introduction to the Kalman Filter[R].UNC-Chapel Hill,TR 95-041,April 5,2004.
  • 2S J Julier,J K U hlmann.A New Extension of the Kalman Filter to Nonlinear System s[C].P roc.Of AeroSense:The 11th International Symposium on Aerospace /Defence Sensing,Simulation and Controls,Orlando,Florida,1997.
  • 3Eric A.Wan,Rudolph van der Merwe.The Unscented Kalman Filter for Nonlinear Estimation[C].Proceeding s of Symposium 2000 on A daptive Systems f or Signal Processing,Communication and Control (AS-SPCC),IEEE,Lake Louise,Alberta,Canada,Oct,2000.
  • 4S Julier,J K U hlmann.A new approach for filtering nonlinear systems[C].The Proceedings of the American Control Conference,IEEE Press,1995.1628 1632.

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