| SWARM卫星简化动力学厘米级精密定轨 |
| |
| 引用本文： | 张兵兵,聂琳娟,吴汤婷,冯建迪,邱耀东.SWARM卫星简化动力学厘米级精密定轨[J].测绘学报,2016,45(11):1278-1284. |
| |
| 作者姓名： | 张兵兵 聂琳娟 吴汤婷 冯建迪 邱耀东 |
| |
| 作者单位： | 1. 武汉大学测绘学院, 湖北 武汉 430079;2. 湖北水利水电职业技术学院, 湖北 武汉 430070 |
| |
| 基金项目： | 国家973项目(2013CB733301;2013CB733302)，国家自然科学基金(41274032;2013CB733302)，The National Natural Science Foundation of China(．41274032 |
| |
| 摘 要： | 联合星载GPS双频观测值与简化的动力学模型,在卫星运动方程中引入适当的伪随机脉冲参数,对SWARM卫星进行精密定轨。采用星载GPS相位观测值残差、重叠轨道以及与外部轨道对比等3种方法对SWARM卫星简化动力学定轨结果进行检核。结果表明:SWARM星载GPS相位观测值残差RMS为7~10mm;径向、切向以及法向6h重叠轨道差值RMS均在1cm左右,3个方向均无明显的系统误差。通过与欧空局(ESA)发布的精密轨道进行对比分析,径向轨道差值RMS为2~5cm,切向轨道差值RMS为2~5cm,法向轨道差值RMS为2~4cm,3D轨道差值RMS为4~7cm;SWARM-B定轨精度优于SWARM-A与SWARM-C。因此,采用简化动力学法与本文提供的定轨策略进行SWARM卫星精密定轨是切实可行的,定轨结果良好且稳定,定轨精度达到厘米级。
|
| 关 键 词： | SWARM卫星 伪随机脉冲 简化动力学方法 定轨策略 厘米级 |
| 收稿时间： | 2016-06-12 |
| 修稿时间： | 2016-08-11 |
Centimeter Precise Orbit Determination for SWARM Satellite via Reduced-dynamic Method |
| |
| ZHANG Bingbing,NIE Linjuan,WU Tangting,FENG Jiandi,QIU Yaodong.Centimeter Precise Orbit Determination for SWARM Satellite via Reduced-dynamic Method[J].Acta Geodaetica et Cartographica Sinica,2016,45(11):1278-1284. |
| |
| Authors: | ZHANG Bingbing NIE Linjuan WU Tangting FENG Jiandi QIU Yaodong |
| |
| Institution: | 1. School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China;2. Hubei Water Resource Technical College, Wuhan 430070, China |
| |
| Abstract: | Combining dual-frequency satellite-borne GPS observations with reduced dynamic models,and introducing proper pseudo-stochastic pulse parameters into the satellite’s motion equation,SWARM satellite precise orbit determination is implemented.The orbit accuracy is assessed using three methods, which include analysis satellite-borne GPS phase observation residuals,orbit overlaps and external orbit comparisons.The results indicate that the SWARM satellite-borne GPS phase observation residual RMS is in the range of 7 to 10 mm,radial,along-track and cross-track orbit overlap difference RMS of 6 hours are about 1 cm,three directions have no significant systematic errors,comparisons with orbits computed by European Space Agency (ESA),Radial orbit difference RMS is in the range of 2 to 5 cm,along-track orbit difference RMS is in the range of 2 to 5 cm,cross-track orbit difference RMS is in the range of 2 to 4 cm,3D orbit difference RMS is in the range of 4 to 7 cm,SWARM-B orbit accuracy is better than SWARM-A and SWARM-C.This evaluations indicate that SWARM satellite precise orbit determination is practicable by using reduced-dynamic method and orbit determining strategy in the article,the orbit solution is well and stable,the orbit accuracy reaches centimeter level. |
| |
| Keywords: | SWARM satellite pseudo-stochastic pulses reduced-dynamic method orbit determining strategy centimeter level |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《测绘学报》浏览原始摘要信息 |
| 点击此处可从《测绘学报》下载免费的PDF全文 |
|
