One-Centimeter Orbit Determination for Jason-1: New GPS-Based Strategies
One-Centimeter Orbit Determination for Jason-1: New GPS-Based Strategies
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DOI：
10.1080/01490410490465300
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发表时间：
2004-01
期刊：
影响因子：
1.6
通讯作者：
B. Haines;Y. Bar-Sever;W. Bertiger;S. Desai;P. Willis
中科院分区：
文献类型：
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作者：
B. Haines;Y. Bar-Sever;W. Bertiger;S. Desai;P. Willis
美国/法国的Jason-1号卫星携带了一个最先进的全球定位系统接收器，以满足精确轨道确定的要求。Jason-1“BlackJack”GPS接收机的性能在使命的早期POD结果中得到了有力的反映，在2001年卫星发射后不久就实现了1-2厘米的径向精度。我们已经取得了进一步的进展，在基于GPS的POD杰森-1，最显着的是在描述的相位中心变化的机载GPS天线。我们还采用了来自重力恢复和气候实验（GRACE）的新的地球位势模型。新策略使我们能够更好地利用21点GPS跟踪数据在POD过程中的独特贡献。内部和外部的结果（例如，激光测距）的比较表明，仅使用全球定位系统数据，Jason-1号的轨道精度就达到了1厘米（径向均方根）。
The U.S./French Jason-1 satellite is carrying a state-of-the-art GPS receiver to support precise orbit determination (POD) requirements. The performance of the Jason-1 “BlackJack” GPS receiver was strongly reflected in early POD results from the mission, enabling radial accuracies of 1–2 cm soon after the satellite's 2001 launch. We have made further advances in the GPS-based POD for Jason-1, most notably in describing the phase center variations of the on-board GPS antenna. We have also adopted new geopotential models from the Gravity Recovery and Climate Experiment (GRACE). The new strategies have enabled us to better exploit the unique contributions of the BlackJack GPS tracking data in the POD process. Results of both internal and external (e.g., laser ranging) comparisons indicate that orbit accuracies of 1 cm (radial RMS) are being achieved for Jason-1 using GPS data alone.