通过数值仿真验证了该导航方案的有效性，并分析了各航天器间几何参数的变化特点。
The simulation results demonstrate the validity of the navigation method and are used to analyze variation characteristics of the geometric parameters among the spacecraft.
分析表明该天基导航系统的几何参数精度因子受时间测量误差均方差和基线长度变化影响较大。
The GDOP of this system relates to baseline of formation-structure and mean square deviation of time measure.
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