| 不同观测技术的Jason-2卫星精密定轨评估 |
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| 引用本文： | 盛传贞,甘卫军,赵春梅,孙保琪,梁诗明,陈为涛,肖根如.不同观测技术的Jason-2卫星精密定轨评估[J].测绘学报,2014,43(8):796-802. |
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| 作者姓名： | 盛传贞 甘卫军 赵春梅 孙保琪 梁诗明 陈为涛 肖根如 |
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| 作者单位： | 1. 中国地震局地质研究所;
2. 中国测绘科学研究院;
3. 中国科学院测量与地球物理研究所;
4. 未知 |
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| 基金项目： | 国家自然科学基金，测绘地理公益性行业科研专项 |
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| 摘 要： | 针对GPS、SLR和DORIS三种不同手段的各自定轨精度问题，本文基于不同的轨道评估方法进行了深入分析。以JASON-2卫星为例，分析了姿态模型误差及其对定轨精度的影响，分别讨论了GPS、SLR和DORIS的定轨策略和定轨精度，并基于轨道评估结果进行了轨道叠加。基于实测数据进行了试验，试验结果表明，JASON-2卫星姿态模型误差对DORIS、GPS和SLR轨道影响分别为0.040、0.036和0.033m；DORIS定轨结果优于GPS和SLR，SLR定轨精度最差；基于SLR验证和轨道重叠结果加权，对GPS、SLR和DORIS轨道进行轨道叠加，其精度一致，通过与JPL轨道比较，其径向精度为2cm。
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| 关 键 词： | GPS SLR DORIS Jason- 精密轨道确定 |
| 收稿时间： | 2013-01-14 |
| 修稿时间： | 2013-12-26 |
Assessment of Precise Orbit Determination of Jason-2 Satel l ite Using Different Observation Technologies |
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| SHENG Chuanzhen,GAN Weijun,ZHAO Chunmei,SUN Baoqi,LIANG Shiming,CHEN Weitao,XIAO Genru.Assessment of Precise Orbit Determination of Jason-2 Satel l ite Using Different Observation Technologies[J].Acta Geodaetica et Cartographica Sinica,2014,43(8):796-802. |
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| Authors: | SHENG Chuanzhen GAN Weijun ZHAO Chunmei SUN Baoqi LIANG Shiming CHEN Weitao XIAO Genru |
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| Abstract: | This paper studied the accuracy of precise orbit determination by using different observation technologies such as GPS, SLR and DORIS respectively based on different orbit validating method, and taken JASON-2 as example to analysis attitude model error and its effect on orbit, discussed in detailed the strategy of orbit determination, orbit accuracy and orbit stacking based on results of orbit validating. Experiment has been carried out by using observational data and the results show us that: the attitude model error on orbit determined by DORIS, GPS and SLR respectively is 0.040、0.036 and 0.033m. The orbit determined by DORIS is the best among that determined by GPS, SLR and DORIS and the orbit determined by SLR is the worse. When we combine the orbit determined by GPS, DORS and SLR by using the weight based on result of SLR validating and orbit Overlap, the combined orbit have similar accuracy, when comparing it with JPL orbit, it show us that the radial accuracy can reach to 2 centimeters. |
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| Keywords: | GPS SLR DORIS Jason-2 precise orbit determination |
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