Based on the research of orbit determination by using two GPS satellites, this paper discusses the initial value problem and provides an effective method of getting initial value.
研究了用两颗全球定位系统(GPS)卫星粗略确定低轨卫星轨道的问题，并着重讨论了其中的初值问题，给出了一种有效的初值方法。
Based on research of GAMIT software, the GPS orbit determination method were studied and discussed. This paper gives a valuable strategy for regional orbit determination in China.
本文基于美国Gamit软件研究的基础上，对于GPS实时精密轨道确定的方法进行了细致的研究，提出了在中国区域范围内有实用价值的区域定轨方法与方案。
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