Two-way satellite tracking as basis of gravity field misssion scenarios - a simulation study with detailed error analysis II

作为重力场任务场景基础的双向卫星跟踪——详细误差分析的模拟研究II

• 批准号: 258302405
• 负责人: Professor Dr. Roland Pail
• 金额: --
• 依托单位: Lehrstuhl für Astronomische und Physikalische Geodäsie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2014
• 资助国家: 德国
• 起止时间: 2013-12-31 至 2019-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/258302405?language=en
• 关键词: Two; way; satellite; tracking; basis

Three tasks can be achieved by inter-satellite links at the same time: time synchronization, ranging and data transfer. This synergy shall be used in a constellation of geostationary, geosynchronous and Galileo satellites to appropriately fulfill all three tasks. In this proposal gravity recovery and precise orbit determination of low-Earth orbiters are the focal points. Within boundaries defined by data transfer, the constellation of geostationary and Galileo satellites equipped with inter-satellite links will be optimized for orbit determination of low-Earth orbiters. The information on the achievable orbit accuracies will be used in the simulations of gravity field recovery. The first part of the project showed, that aliasing has a very big contribution to the total error budget. The non-tidal errors can be reduced by estimating gravity fields of low degree and order in a short time scale. This approach is introduced by Wiese. The follow-up proposal will study the possibility of co-parameterization of tidal modes in long-term studies. Therefore we propose an improvement of tidal models in this tracking constellation. The objective of this project is to complement the error tree of gravity field recovery in the framework of GETRIS (geodesy and time reference in space).

卫星间链路可同时完成时间同步、测距和数据传输三项任务。这种协同作用将在地球静止、地球同步和伽利略卫星星座中适当地完成所有三项任务。在这个建议中，重力恢复和低地球轨道的精确轨道确定是重点。在数据传输确定的边界内，配备卫星间链路的地球静止卫星和伽利略卫星星座将优化，以确定低地球轨道飞行器的轨道。可达到的轨道精度信息将用于重力场回收的模拟。项目的第一部分表明，混叠对总误差预算有很大的贡献。通过在短时间尺度上估计低阶重力场，可以减小非潮汐误差。这种方法是由Wiese引入的。后续计划将研究在长期研究中潮汐模态共参数化的可能性。因此，我们提出了对该跟踪星座潮汐模型的改进。该项目的目的是对GETRIS （geodesy and time reference in space）框架下重力场恢复误差树进行补充。

项目成果

Gravity Field Recovery Using High-Precision, High-Low Inter-Satellite Links

• DOI: 10.3390/rs11050537
• 发表时间: 2019-03
• 期刊: Remote. Sens.
• 作者: M. Hauk;R. Pail

Mass variation observing system by high low inter-satellite links (MOBILE) – a new concept for sustained observation of mass transport from space

• DOI: 10.1515/jogs-2019-0006
• 发表时间: 2019-01
• 期刊: Journal of Geodetic Science
• 影响因子: 1.3
• 作者: R. Pail;J. Bamber;R. Biancale;R. Bingham;C. Braitenberg;A. Eicker;F. Flechtner;T. Gruber;A. Güntner;G. Heinzel;M. Horwath;L. Longuevergne;J. Müller;I. Panet;H. Savenije;S. Seneviratne;N. Sneeuw;T. V. van Dam;B. Wouters

Gravity field recovery in the framework of a Geodesy and Time Reference in Space (GETRIS)

空间大地测量和时间参考 (GETRIS) 框架下的重力场恢复

• DOI: 10.1016/j.asr.2017.01.028
• 发表时间: 2017
• 期刊: Advances in Space Research
• 影响因子: 2.6
• 作者: Schlicht;Murböck
• 通讯作者: Murböck

Treatment of ocean tide aliasing in the context of a next generation gravity field mission

• DOI: 10.1093/gji/ggy145
• 发表时间: 2018-07-01
• 期刊: GEOPHYSICAL JOURNAL INTERNATIONAL
• 影响因子: 2.8
• 作者: Hauk, Markus;Pail, Roland
• 通讯作者: Pail, Roland