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首页> 美国卫生研究院文献>Sensors (Basel Switzerland) >A Method to Determine BeiDou GEO/IGSO Orbital Maneuver Time Periods
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A Method to Determine BeiDou GEO/IGSO Orbital Maneuver Time Periods

机译：确定北斗GEO / IGSO轨道机动时间段的方法

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摘要

Because there are different types of BeiDou constellations with participating geostationary orbit (GEO) and inclined geosynchronous orbit (IGSO) satellites, the maneuvering frequency of BeiDou satellites is higher than that of other navigation systems. The satellite orbital maneuvers lead to orbital parameter failure for several hours from broadcast ephemeris. Due to the missing initial orbit, the maneuvering thrust, and the period of orbital maneuvering, the orbit products of maneuvering satellites cannot be provided by the International Global Navigation Satellite System (GNSS) Service (IGS) and International GNSS Monitoring and Assessment System (iGMAS). In addition, the period of unhealthy status and the orbital parameters of maneuvering satellites in broadcast ephemeris are unreliable, making the detection of orbital maneuver periods more difficult. Here, we develop a method to detect orbital maneuver periods involving two key steps. The first step is orbit prediction of maneuvering satellites based on precise orbit products. The second step is time period detection of orbit maneuvering. The start time detection factor is calculated by backward prediction orbit and pseudo-range observations, and the end time detection factor is calculated by forward prediction orbit and pseudo-range observations. Data of stations from the Multi-GNSS Experiment (MGEX) and iGMAS were analyzed. The results show that the period of orbit maneuvering could be detected accurately for BeiDou GEO and IGSO satellites. In addition, the orbital maneuver period of other GNSS medium Earth orbit (MEO) satellites could also be determined by this method. The results of period detection for orbit maneuvering provide important reference information for precision orbit and clock offset determination during satellite maneuvers.
机译：由于北斗星座的类型不同，有参与地球静止轨道（GEO）和倾斜地球同步轨道（IGSO）卫星，因此北斗卫星的机动频率高于其他导航系统。从广播星历表开始，卫星的轨道操纵导致了几个小时的轨道参数故障。由于缺少初始轨道，机动推力和轨道机动周期，国际全球导航卫星系统（GNSS）服务（IGS）和国际GNSS监视与评估系统（iGMAS）无法提供机动卫星的轨道产品）。另外，广播星历中不健康状态的周期和机动卫星的轨道参数是不可靠的，这使得对轨道机动周期的检测更加困难。在这里，我们开发了一种检测轨道操纵周期的方法，涉及两个关键步骤。第一步是基于精确的轨道产品对机动卫星进行轨道预测。第二步是轨道操纵的时间周期检测。通过后向预测轨道和伪距观测来计算开始时间检测因子，并且通过前向预测轨道和伪距观察来计算结束时间检测因子。分析了来自多GNSS实验（MGEX）和iGMAS的台站数据。结果表明，北斗GEO和IGSO卫星可以准确地检测出轨道操纵周期。此外，其他GNSS中地球轨道（MEO）卫星的轨道机动周期也可以通过此方法确定。轨道机动周期检测的结果为卫星机动过程中精确轨道和时钟偏移的确定提供了重要的参考信息。

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