基于经验模式分解和多项式拟合的静止卫星变轨预测  

Estimating orbit transferring of geostationary satellites based on empirical mode decomposition and polynomial fit

作　　者：李烨 石会鹏 张周 上官泽胤 LI Ye;SHI Huipeng;ZHANG Zhou;SHANGGUAN Zeyin(31007 Troop,Beijing 100079,China;Beijing OET Spectrum Institute Co.,Ltd.,Beijing 100041,China;Chinese Academy of Military Science,Beijing 100071,China)

机构地区：[1]31007部队,北京100079 [2]北京东方波泰无线电频谱技术研究所有限公司,北京100041 [3]军事科学院,北京100071

出　　处：《电子设计工程》2023年第15期121-125,共5页Electronic Design Engineering

摘　　要：为了实现对具有摄动的静止卫星进行实时自动化变轨预测,基于互联网两行星历数据转换得到的经度等轨道参数,利用经验模式分解方法的尺度滤波特性去除静止卫星轨道保持等造成的精度信号小幅波动,在特定尺度上对残差分量进行多项式预测,通过将预测误差与参考噪声阈值进行比对,实时判断卫星是否变轨。实验结果表明,该算法能够对静止轨道卫星的变轨情况进行实时预测,为实现变轨自动预测指明了方向。In order to automatically estimate the orbit transferring of geostationary satellites with perturbation in real time,an estimating orbit transferring algorithm of geostationary satellites on empirical mode decomposition and polynomial fit is proposed,based on the orbital parameters,e.g.the longitude and otherwise,which are derived from two line elements downloaded from internet.Small amplitude maneuvers in the longitude signals of geostationary satellites,for example the orbit keeping were eliminated,by the scale filtering property of the empirical mode decomposition method.It fits a polynomial to the residuals in specific scale,for estimating the residual value of the next time.It decides whether the geostationary satellite is changing its position,by comparing the estimation error with the reference-noise threshold.The test result shows that,this algorithm can estimate the geostationary satellite orbit transferring in real time,and signals the way forward for automatically estimating.

关 键 词：静止卫星 经验模式分解 多尺度 多项式拟合 

分 类 号：TN927.2[电子电信—通信与信息系统]