›› 2011, Vol. 31 ›› Issue (4): 9-14.doi: 10.3780/j.issn.1000-758X.2011.04.002

• 第二届中国卫星导航学术年会论文 • 上一篇    下一篇

中国全球卫星导航信号基本框架设计

 谭述森, 周兵, 郭盛桃, 刘志俭   

  1. (北京环球信息中心,北京 100094)
  • 收稿日期:2011-03-22 修回日期:2011-04-02 出版日期:2011-08-25 发布日期:2011-08-25
  • 作者简介:谭述森 1942年生,1965年毕业于成都电讯工程学院雷达专业,现为北京环球信息中心研究员,中国卫星导航系统工程副总师。研究方向为卫星导航定位理论与应用、无线电信号设计与处理。

Research on COMPASS Navigation Signals of China

 TAN  Shu-Sen, ZHOU  Bing, GUO  Sheng-Tao, LIU  Zhi-Jian   

  1. (Beijing Global Information Center, Beijing 100094)
  • Received:2011-03-22 Revised:2011-04-02 Online:2011-08-25 Published:2011-08-25

摘要: 中国的全球卫星导航信号设计必须遵循许多约束条件,具备国际可协调性,导航信号的服务类型、载波中心频率、调制方式和伪随机码序列均需参加与GPS、Galileo进行的频率协调。依据参加与GPS频率协调的参考假设文件,描述了中国的全球卫星导航信号结构、基本参数、公开导航信号的伪随机扩频码序列和二次编码序列,计算表明伪随机扩频序列的性能与GPS信号伪随机扩频序列性能相当。

关键词: 信号体制, 调制方式, 相关特性, 伪随机码, 北斗卫星导航系统

Abstract: The signals of global navigation satellite system of China must obey many constraints, and should  be coordinated with other navigation signals as well. The service type, carrier frequency, modulation scheme and spreading codes are essential for the coordination. The signal structure and parameters of COMPASS excerpted from the reference assumptions document(RAD)were presented. The correlation performances of the spreading codes of the COMPASS open signals were consistent with  that of GPS. Base on the signal structure and basic parameters of the RADs, COMPASS and GPS,   the L band frequency coordination  was completed in accordance with the frames established by ITU in September, 2010.

Key words: Signal system, Modulation scheme, Code correlation, Spreading codes, COMPASS