【摘要】 摘要开展了基于Gooding算法的400km天基平台光学目标监测的轨道确定研究,当测量误差为3"和6"时,分别对800,1500及36 000 km轨道高度目标进行初始轨道确定及轨道改进分析.仿真结果表明,利用400 km轨道高度平台对800～1500 km轨道高度目标进行初定轨,测量数据误差为3"～6"时,4～15 min弧段的初定轨精度约在10 km量级,1～2 min弧段的初定轨精度约在100 km量级;15 min初定轨弧段轨道改进后误差在100 m量级,弧段小于10 min 时轨道改进误差精度在km量级.利用400 km轨道高度平台对36 000 km轨道高度目标进行初定轨,测量数据误差为3"时,15～20 min弧段的初定轨精度约在数十km量级,8～10 min弧段的初定轨精度在100 km量级;轨道改进后误差在km量级.测量数据误差为6"时,20 min弧段初定轨精度在10 km量级,8～15 min弧段初定轨精度在100 km量级,轨道改进后误差精度在10 km量级.更多还原

【Abstract】 In this paper,optical target monitoring orbit determination using the Gooding algorithm based on the 400 km altitude space platform was researched.The measurement error was set to 3" and 6" respectively for 800 km,1500 km altitude low Earth orbits and 36 000 km altitude geosynchronous orbit to determine the initial orbit and precise orbit.Simulation results show that the initial orbit determination accuracy of the 4～15 min arc is about 10 km,and the 1～2 min arc is about 100 km when the measurement data error is between 3 " and 6".The error of 15 min initial determination arc is 100 m.As the arc is less than 10 min,the improved error accuracy of the orbit is in the order of km scale.As the measurement data error is 3 ",the initial orbit determination accuracy of the 15～20 min arc is about tens of kilometers,and that of the 8～10 min arc is 100 km.The improved orbit has an error of km.When the measurement data error is 6",the accuracy of the initial orbit determination of the 20 min arc is at the magnitude of 10 km,the accuracy of the initial orbit determination of the 8～15 min arc is at the magnitude of 100 km,and the error accuracy of the improved orbit is at the magnitude of 10 km.更多还原