Orbit and clock analysis of Compass GEO and IGSO satellites
Orbit and clock analysis of Compass GEO and IGSO satellites
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DOI：
10.1007/s00190-013-0625-4
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发表时间：
2013-06-01
影响因子：
4.4
通讯作者：
Montenbruck, O.
中科院分区：
文献类型：
--
作者：
Steigenberger, P.;Hugentobler, U.;Montenbruck, O.
中国目前正致力于建立自己的全球导航卫星系统，称为北斗。目前，北斗星座在地球静止轨道（GEO）上提供四颗可用卫星，在倾斜地球同步轨道（IGSO）上提供五颗卫星。根据一个由六个具有罗盘功能的接收器组成的网络，确定了这些卫星的轨道和时钟参数。IGSO卫星的轨道一致性为1-2分米级，GEO卫星的轨道一致性为几分米级。这些数值可以通过卫星激光测距的独立验证加以确认。所有的指南针时钟都显示出类似的性能，但与伽利略和最新一代的GPS卫星相比，稳定性略低。与仅使用GPS的结果相比，基于从六个接收器网络获得的产品的仅使用罗盘的精确点定位提供了几厘米的精度。
China is currently focussing on the establishment of its own global navigation satellite system called Compass or BeiDou. At present, the Compass constellation provides four usable satellites in geostationary Earth orbit (GEO) and five satellites in inclined geosynchronous orbit (IGSO). Based on a network of six Compass-capable receivers, orbit and clock parameters of these satellites were determined. The orbit consistency is on the 1-2 dm level for the IGSO satellites and on the several decimeter level for the GEO satellites. These values could be confirmed by an independent validation with satellite laser ranging. All Compass clocks show a similar performance but have a slightly lower stability compared to Galileo and the latest generation of GPS satellites. A Compass-only precise point positioning based on the products derived from the six-receiver network provides an accuracy of several centimeters compared to the GPS-only results.