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中文摘要：
以美国现行的天基光学传感器SBV为例，分析了天基测控环境下光学传感器对同步轨道目标的覆盖特性，并构建了天基测控的观测模型。针对天基卫星星历误差对同步轨道目标定轨精度的影响，提出了抑制天基卫星星历误差的天地基联合定轨方法，将天基卫星和同步轨道卫星都作为待估计状态量，同时解算天基卫星和同步卫星轨道。仿真实验表明，天地基联合定轨方法能有效抑制天基星历误差的影响，能同时提高天基卫星和同步卫星的定轨精度。
英文摘要：
Based on the operating Space Based Visible（SBV） system of USA, the cover area of GEO satellite was discussed, and the space based observation model was designed. For the purpose of restraining the ephemeris error of space satellites, the combine orbit determination algorithm was put forward based on space based measurement data and ground based measurement data. The new orbit determination method could calculate the space based satellite orbit and GEO satellite orbit at the same time. In orbit to simplify the calculation of state matrix, a new method of numerical state matrix was proposed. Finally simulation experiments were processed, and the results showed that the combine orbit determination method could improve the precision of all the satellite orbit joined calculation.
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