王萌1, 2, 3,
饶永南1, 2,
卢晓春1, 2, 4,
王雪1, 2, 3
1.中国科学院国家授时中心 西安 710600
2.中国科学院精密导航定位与定时技术重点实验室 西安 710600
3.中国科学院大学电子电气与通信工程学院 北京 101408
4.中国科学院大学天文与空间科学学院 北京 101408
基金项目:国家重大专项(GFZX0306ZXWX004HT01)
详细信息
作者简介:石慧慧:女,1987年生,助理研究员,主要从事GNSS导航信号分析处理及信号质量监测评估等方面的工作
王萌:女,1993年生,博士生,研究方向为GNSS信号质量评估及通道预失真研究
饶永南:男,1982年生,副研究员,硕士生导师,主要从事卫星导航信号接收系统测试、信号分析处理等方面的工作
卢晓春:女,1970年生,研究员,主要从事卫星导航定位系统设计和建设工作
王雪:男,1979年生,研究员,主要从事卫星导航信号体制验证、信号分析处理及信号质量评估等方面的工作
通讯作者:石慧慧 shihuihui@ntsc.ac.cn
中图分类号:TN911.6; TN927.2计量
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被引次数:0
出版历程
收稿日期:2019-05-28
修回日期:2019-09-19
网络出版日期:2020-01-21
刊出日期:2020-07-23
Researches on Pro-retirement Signal Quality of BeiDou Navigation Satellite System GEO-3 Satellite B1 Signal
Huihui SHI1, 2, 3,,,Meng WANG1, 2, 3,
Yongnan RAO1, 2,
Xiaochun LU1, 2, 4,
Xue WANG1, 2, 3
1. National Time Service Center, Chinese Academy of Sciences, Xi’an 710600, China
2. Key Laboratory of Precision Navigation, Positioning and Timing Technology, Chinese Academy of Sciences, Xi’an 710600, China
3. School of Electronic and Communication Engineering, University of Chinese Academy of Sciences, Beijing 101408, China
4. School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 101408, China
Funds:The National Key Projects of China (GFZX0306ZXWX004HT01)
摘要
摘要:北斗2号系统于2012年正式向亚太地区提供服务,其中GEO-3卫星已退役,由GEO-7卫星替代。研究卫星临退役期间的信号质量特性不仅能够分析北斗2号系统卫星载荷状态,而且为其它临退役星的信号特性估计提供重要的参考价值,同时对北斗3号系统GEO卫星载荷信号质量控制与优化具有重要的借鉴意义。该文利用昊平观测站40 m大口径天线的多源多手段数据,分析了GEO-3卫星B1民用信号的功率谱、地面接收功率、S曲线过零点偏差(SCB)的长期变化趋势,给出了相应的统计结果,提出了针对卫星载荷信号质量优化的相关建议,也对超期服役卫星的决策提供了参考。
关键词:北斗卫星导航系统/
临退役卫星/
地面接收功率/
S曲线过零点偏差
Abstract:The BDS-2 (BeiDou-2 System) officially provided services to the Asia-Pacific region in 2012. The GEO-3 satellite has been retired and replaced by the GEO-7 satellite. Studying the signal quality characteristics of the satellite during the pro-retirement period can not only analyze the satellite payload status of the BDS-2, but also provide important reference value for other signal characteristics of the pro-retirement satellite. At the same time, it has important enlightenment and reference significance for the signal quality controlling and optimizing of the GEO satellite load of the BDS-3. Using the multi-method monitoring data of the 40 m large-diameter antenna of the Hao-ping Radio Observatory(HRO), the power spectrum, the ground receiving power and S-Curve Bias (SCB) of the GEO-3 satellite B1 civil signal are analyzed. The long-term trend of these characteristics is given, and the corresponding statistical results are given. Relevant suggestions for satellite payload signal quality optimization are proposed.
Key words:BeiDou navigation satellite System(BDS)/
Pro-retirement satellite/
Ground receiving power/
S-Curve Bias (SCB)
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