摘要
针对大型卫星的挠性附件振动会影响质量特性参数辨识精度和准确性的问题,提出了带挠性附件卫星转动惯量参数在轨辨识的递推算法。基于带挠性附件卫星动力学模型,导出了转动惯量参数辨识的最小二乘描述形式;与挠性附件振动模态估计的卡尔曼滤波算法相结合,提出了一种适用于带挠性附件卫星转动惯量参数辨识的并发递推算法。通过仿真算例验证了卫星挠性附件振动对转动惯量参数辨识的影响和文中递推算法的有效性。
Considering the effects of flexible vibration on identification accuracy of mass-property parameters, a new recursive algorithm for on-orbit identification of the moments of inertia for satellites with flexible appendages was proposed in this paper. Firstly, based on the dynamic models of satellites with flexible appendages, the least square description for identification of the moments of inertia was proposed. Then, combining the Kalman filter algorithm for estimating the modal parameters of the flexible appendages, a concurrent recursive algorithm for identification of the moments of inertia for satellites with flexible appendages was presented. Finally, simulation examples demonstrated the influence of vibrations of the flexible appendages on the identification of moments of inertia, and the effectiveness of the proposed concurrent recursive algorithm. © 2017, Editorial Office of Journal of Vibration and Shock. All right reserved.
出处
《振动与冲击》
EI
CSCD
北大核心
2017年第8期16-21,33,共7页
Journal of Vibration and Shock
基金
国家自然科学基金项目(11572069
11432010
11502040)
CAST-BISEE基金项目
