针对卫星质心测量误差影响编队卫星基线的问题，首先从编队卫星相对定轨的原理出发，分析了卫星质心误差的影响，然后考虑到编队卫星有效基线通常为载荷天线之间的基线，提出了天线基线与质心基线的定义。采用2015-12-08两颗编队卫星的实测数据，计算分析了卫星质心测量误差对质心基线和天线基线的影响，结果表明：卫星质心测量误差对质心基线的影响明显大于对天线基线的影响；卫星质心测量误差对天线基线的影响约为质心测量误差的10％。%To the question of the influence of satellite center-of-gravity measurement error on the baseline of formation fly-ing satellites,the influence of satellite center-of-gravity measurement error was analyzed from the principle of formation flying satellites relative orbit determination firstly.Then,in view of the useful baseline is usually the distance between the payload in-struments of two satellites,the definition of the baseline of two payload instruments antennas and the baseline of two satellites center-of-gravity were established.The baseline of two formation flying satellites center-of-gravity and the baseline of two an-tennas were computed by using the global positioning system data observed December 8,2005.The results of computation show that the measurement error of the satellite center-of-gravity makes the baseline error of two satellites center-of-gravity greatly than that of two antennas.The two antennas baseline error is about 10 percent of the two satellites center-of-gravity baseline error.
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