CAJ | 학술논문

提出了一种基于估计的卫星编队动力学建模方法.以实际的经过简化建模的卫星编队动力学模型为基础,利用UKF算法对该模型与精确模型的模型差进行估计,并运用该估计结果对原有模型进行反馈补偿,以达到提高卫星编队建模精度的目的.为了验证该建模方法的有效性,对基于空间圆形编队的卫星进行了仿真实验.仿真结果表明,在忽略J_2摄动力影响的情况下,基于UKF估计的建模方法大大提高了原有建模方法的性能.
제출료일충기우고계적위성편대동역학건모방법.이실제적경과간화건모적위성편대동역학모형위기출,이용UKF산법대해모형여정학모형적모형차진행고계,병운용해고계결과대원유모형진행반궤보상,이체도제고위성편대건모정도적목적.위료험증해건모방법적유효성,대기우공간원형편대적위성진행료방진실험.방진결과표명,재홀략J_2섭동력영향적정황하,기우UKF고계적건모방법대대제고료원유건모방법적성능.
A UKF-based dynamics modeling method of formation flying satellites is proposed. On the basis of the simple dynamics model in practice, the errors between that simple model and the refined model are es-timated by using UKF. In order to improve the accuracy of model performance, the estimation feeds back to compensate the simple model. For evaluating the validity and efficiency of this modeling method, the simu-lation is implemented with respect to the space circular formation flying satellites. The results show that the performance of the UKF-based dynamics modeling method is superior to the method without UKF, which ig-nores J_2 effect.