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基于自适应滤波的编队卫星实时相对定轨

DOI: 10.13700/j.bh.1001-5965.2013.0589, PP. 1195-1199

Keywords: 编队卫星,自适应滤波,实时相对定轨,伪距,广播星历

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Abstract:

提出基于自适应滤波的编队卫星实时相对定轨算法,利用2005-12-09—10两颗GRACE(GravityRecoveryandClimateExperiment)卫星的GPS(GlobalPositioningSystem)实测数据进行实时相对定轨试验计算,采用JPL(JetPropulsionLaboratory)轨道对试验结果外部检核,结果表明①自适应滤波相对定轨通过自适应因子,可以较好地平衡编队卫星的观测信息和相对动力学信息,其相对定轨结果精度优于Kalman滤波相对定轨结果;②自适应滤波相对定轨结果随着星间基线缩短而精度提高;③两颗GRACE卫星采用单频伪距和广播星历进行自适应滤波相对定轨,可以得到精度优于6cm的星间基线。

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