ACTA AERONAUTICAET ASTRONAUTICA SINICA >
Relative Motion Estimation of Non-cooperative Spacecraft Based on Adaptive CKF
Received date: 2013-10-25
Revised date: 2014-03-20
Online published: 2014-04-04
Supported by
National Natural Science Foundation of China (61174037);National Basic Research Program of China (2012CB821205)
A relative state estimation method is proposed based on stereo vision for non-cooperative satellite with no communication and information about structure. Since the error of clohessy wiltshire (CW) model can not be neglected when camera does not coincide with the center of mass of spacecraft, a general kinematic coupling which is appropriate for both eccentric orbit and circular orbit is used to describe the relationship between rotation and translation dynamics. Adaptive cubature Kalman filter combing Sage-Husa noise statistic estimator is introduced for nonlinear filtering problem with time-varying noise. Simulation results show that the method can be able to adapt the time-varying noise and its precision for relative motion estimation is higher.
YU Han , WEI Xiqing , SONG Shenmin , LIU Ming . Relative Motion Estimation of Non-cooperative Spacecraft Based on Adaptive CKF[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2014 , 35(8) : 2251 -2260 . DOI: 10.7527/S1000-6893.2014.0026
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