中国激光, 2017, 44 (4): 0404004, 网络出版: 2017-04-10   

北斗卫星全球激光测距观测及数据应用 下载: 650次

Global Laser Ranging Observation of Beidou Satellites and Data Application
作者单位
1 中国科学院上海天文台, 上海 200030
2 中国科学院大学, 北京 100049
摘要
卫星轨道精确测定是卫星导航系统提供导航服务的基础。北斗卫星导航系统是我国自主研发的新一代卫星导航系统, 卫星上均装载了激光反射器, 以厘米或毫米级精度卫星激光测距作为北斗卫星精密测轨与微波测量系统的独立外部标校手段。为增强北斗卫星的激光观测能力, 上海激光测距站在白天光束监视、望远镜精跟踪、噪声滤波等方面进行了性能改进, 在国际激光联测台站中首先实现同步轨道卫星白天激光观测; 基于国际激光联测机制, 组织国际激光测距站开展北斗卫星全球激光观测实验, 获取了28个台站对北斗卫星的激光观测数据, 弥补了国内台站地域局限性, 为国内卫星获取国外台站观测数据提供了途径。利用全球台站激光观测数据开展了北斗卫星激光独立定轨、广播星历精度检核等研究, 并将结果应用于北斗卫星导航系统性能评估。
Abstract
Accurate determination of satellite orbit is the foundation of providing the navigational service for navigation satellite system. Beidou navigation system is the new generation of navigation satellite system which has been developed independently in China. The Beidou satellites are equipped with laser retro-reflectors and the satellite laser ranging with the precision of centimeter or millimeter-level is regarded as the independent external calibration for the accurate measurement of Beidou satellite orbit and the microwave measurement system. In order to increase the laser observation performance of Beidou satellites, the improvements of daylight laser beam monitor, telescope fine tracking, noise filtering and so on are made, which make Shanghai laser station the first one to observe the synchronous orbit satellites in the daytime among the global laser ranging stations. Based on the international laser ranging observation mechanism, the global laser ranging campaign for Beidou satellites observation experiments is being implemented. Laser observation data of about 28 laser stations are obtained, which compensate the limitation of domestic stations. This provides a way for the domestic satellites to obtain the observation data of foreign stations. Using laser observation data from the global stations, the studies of the independent orbit determination and checking the accuracy of broadcast ephemeris for Beidou satellites are carried out. The results are applied in the performance evaluation of Beidou navigation satellite system.

张忠萍, 程志恩, 张海峰, 赵罡, 邓华荣, 吴志波. 北斗卫星全球激光测距观测及数据应用[J]. 中国激光, 2017, 44(4): 0404004. Zhang Zhongping, Cheng Zhien, Zhang Haifeng, Zhao Gang, Deng Huarong, Wu Zhibo. Global Laser Ranging Observation of Beidou Satellites and Data Application[J]. Chinese Journal of Lasers, 2017, 44(4): 0404004.

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