区域监测站与低轨卫星数据联合测定MEO卫星轨道

doi:10.11947/j.AGCS.2016.F031

测绘学报 ›› 2016, Vol. 45 ›› Issue (S2): 101-108.doi: 10.11947/j.AGCS.2016.F031

区域监测站与低轨卫星数据联合测定MEO卫星轨道

王乐, 张勤, 黄观文, 燕兴元, 秦志伟

长安大学地质工程与测绘学院, 陕西西安 710054

收稿日期:2016-11-25 修回日期:2016-12-20 出版日期:2017-05-20 发布日期:2017-05-20
通讯作者: 张勤 E-mail:zhangqinle@263.net.cn
作者简介:王乐(1986-),男,博士生,研究方向为卫星精密定轨。E-mail:rexlele@163.com
基金资助:
国家自然科学基金（41304033；41504006；41674034）；二代导航重大专项课题“分析中心建设与运行维护”（GFZX0301040308）；陕西省自然科学基金（2016JQ4011）；国家重点研发计划（2016YFB0501804）

Combining Regional Monitoring Stations with Space-based Data to Determine the MEO Satellite Orbit

WANG Le, ZHANG Qin, HUANG Guanwen, YAN Xingyuan, QIN Zhiwei

College of Geology Engineering and Geomantics, Chang'an University, Xi'an 710054, China

Received:2016-11-25 Revised:2016-12-20 Online:2017-05-20 Published:2017-05-20
Supported by:
The National Natural Science Foundation of China (Nos.41304033;41504006;41674034);The Grand Projects of the Beidou-2 System(No.GFZX0301040308);The National Natural Science Foundation of Shanxi Province of China(No.2016JQ4011);State Key Research and Development Plan(No.2016YFB0501804)

摘要/Abstract

摘要：

我国北斗二代系统（BDS）地面运控监测站数量较少且为区域分布，短期内难以实现全球建站，因此对全球运行的中圆地球轨道卫星（MEO）难以形成连续多重覆盖观测，导致BDS的MEO实时轨道精度偏低。基于上述问题，本文考虑到低轨卫星星载GNSS数据可以有效弥补区域监测站在空间覆盖及几何结构上的不足，设计了一种将星载GNSS接收机作为高动态天基监测站，联合地面区域监测站数据对卫星导航系统的MEO卫星轨道进行实时解算预报的方法。算例结果显示：7个区域监测站联合1至3个天基监测站，其定轨精度可分别提升约21%、34%和55%，这也表明，地面区域监测站联合天基低轨卫星数据可有效提高MEO卫星的轨道精度。建议我国BDS在区域测站分布阶段可采用联合低轨卫星数据方法提高北斗MEO卫星实时轨道精度。

关键词: 轨道, 区域, 低轨卫星, BDS

Abstract:

The ground monitoring stations of BeiDou Navigation Satellite System (BDS) are regional distribution and the number of these stations is small. The more global ground stations cannot be built in the short term. The ground regional monitoring stations are difficult to observe the global Medium Earth Orbit Satellite (MEO) continuously, which leads to low precision of orbits in BDS real-time broadcast ephemeris. Based on the above problems, in view of real time satellite GNSS data of low earth orbit satellite can effectively make up the lack of regional monitoring stations in space overlay, a method is proposed that the GNSS receivers of LEO satellites used as high dynamic space-based monitoring stations combining with the data of the ground monitoring stations to calculate and forecast the MEO satellite orbits. The numeral results show that, using the data of seven regional monitoring stations add 1 to 3 LEO satellites, the precision of the MEO orbit determination can be increased by about 21%, 34% and 55% respectively. It also shows that, the ground regional monitoring stations combined with the data of LEO satellites can effectively improve the orbit precision of MEO satellite. It is suggested that using the data combined with ground stations and LEO satellites to improve the precision of broadcast ephemeris of MEO in BDS.

Key words: orbit, region, LEO satellite, BDS

中图分类号:

P227

王乐, 张勤, 黄观文, 燕兴元, 秦志伟. 区域监测站与低轨卫星数据联合测定MEO卫星轨道[J]. 测绘学报, 2016, 45(S2): 101-108.

WANG Le, ZHANG Qin, HUANG Guanwen, YAN Xingyuan, QIN Zhiwei. Combining Regional Monitoring Stations with Space-based Data to Determine the MEO Satellite Orbit[J]. Acta Geodaetica et Cartographica Sinica, 2016, 45(S2): 101-108.

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区域监测站与低轨卫星数据联合测定MEO卫星轨道

Combining Regional Monitoring Stations with Space-based Data to Determine the MEO Satellite Orbit

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