|
|||||
|
|
| 同波束VLBI技术用于月球双探测器精密定轨及重力场解算 | |
| 引用本文： | 鄢建国,李斐,刘庆会,平劲松,李金岭.同波束VLBI技术用于月球双探测器精密定轨及重力场解算[J].宇航学报,2010,31(11). |
| 作者姓名： | 鄢建国 李斐 刘庆会 平劲松 李金岭 |
| 作者单位： | 1. 武汉大学测绘遥感信息工程国家重点实验室,武汉,430070;日本国立天文台RISE项目组,奥州,0230861 2. 武汉大学测绘遥感信息工程国家重点实验室,武汉,430070 3. 中国科学院上海天文台,上海,200030 |
| 基金项目： | 国家自然科学基金(40904006) |
| 摘 要： | 同波束VLBI通过同时观测两个探测器的多点频信号,可以得到两个探测器之间高精度的差分相位时延,日本月球探测计划SELENE充分体现了这一技术在月球探测器精密定轨中的贡献。本文针对采样返回的月球探测任务中,轨道器和返回器同时绕月飞行期间,研究利用同波束VLBI跟踪数据在探测器精密定轨和月球重力场仿真解算中的贡献。结果表明,加入同波束VLBI跟踪数据之后,探测器定轨精度有显著提高,改进超过一个量级。综合同波束VLBI跟踪数据解算得到的重力场模型相比于传统的USB双程测距测速数据,中低阶次位系数精度有明显改进,并且定轨精度有望能达到米级。 |
| 关 键 词： | 同波束VLBI USB 月球重力场 精密定轨 |
Application of Same-Beam VLBI Technique in Precise Orbit Determination of Lunar Bi-Spacecraft and Gravity Field Determination |
|
| YAN Jian-guo,LI Fei,LIU Qing-hui,PING Jin-song,LI Jin-ling.Application of Same-Beam VLBI Technique in Precise Orbit Determination of Lunar Bi-Spacecraft and Gravity Field Determination[J].Journal of Astronautics,2010,31(11). | |
| Authors: | YAN Jian-guo LI Fei LIU Qing-hui PING Jin-song LI Jin-ling |
| Institution: | YAN Jian-guo1,2,LI Fei1,LIU Qing-hui3,PING Jin-song3,LI Jin-ling3(1.State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan University,Wuhan 430070,China,2.RISE Project,National Astronomical Observatory,Oshu 0230861,Japan,3.Shanghai Astronomical Observatory,Shanghai 200030,China) |
| Abstract: | High accuracy differenced phase delay can be obtained by simultaneously observing multi point frequencies signal of two spacecraft with same beam VLBI technique.Its contribution to lunar spacecraft precise orbit determination is embodied in Japanese lunar exploration mission SELENE.Considering that there will be orbiter and return capsule flying around the Moon during the lunar return mission,the contribution of the same beam VLBI to spacecraft precise orbit determination and lunar gravity field solution ar... |
| Keywords: | Same beam VLBI USB Lunar gravity field Precise orbit determination |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |