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Compass系统导航信号的兼容性研究
引用本文:冉一航,胡修林,刘禹圻,柯颋,唐祖平.Compass系统导航信号的兼容性研究[J].中国科学:物理学 力学 天文学,2010(5):676-684.
作者姓名:冉一航  胡修林  刘禹圻  柯颋  唐祖平
作者单位:华中科技大学电子与信息工程系;
摘    要:我们研究了Compass,GPS和Galileo系统的兼容情况,分析了Compass系统各频段信号的功率谱密度以及与GPS和Galileo信号的重叠情况,然后在考虑星座和多普勒影响的前提下,以谱分离系数和等效载噪比衰减作为系统兼容性的评估标准,仿真并分析了Compass,GPS和Galileo系统的相互干扰程度.基于分析结果从信号兼容性、互操作性和信号性能等方面出发,对Compass信号体制的设计提出了建议.

关 键 词:卫星导航系统  Compass系统  兼容性  谱分离  载噪比衰减

Compatibility analysis of Compass navigation signals
RAN YiHang,HU XiuLin,LIU YuQi,KE Ting & TANG ZuPing.Compatibility analysis of Compass navigation signals[J].Scientia Sinica Pysica,Mechanica & Astronomica,2010(5):676-684.
Authors:RAN YiHang  HU XiuLin  LIU YuQi  KE Ting & TANG ZuPing
Institution:RAN YiHang*,HU XiuLin,LIU YuQi,KE Ting & TANG ZuPing Department of Electronics , Information Engineering,Huazhong University of Science , Technology,Wuhan 430074,China
Abstract:This paper analyses the compatibility of Compass, GPS, and Galileo systems. Firstly, the spectrum of the Compass signals and the overlap of these systems are analyzed. Then the spectral separation coefficient and equivalent degradation of carrier-to-noise ratio are used as criteria to evaluate compatibility among these navigation systems. The effect of constellation and Doppler are taken into consideration. The simulations of the intersystem interferences are performed for signals where Compass, GPS, and Ga...
Keywords:Global Navigation Satellite System  Compass system  compatibility  spectral separation coefficient  degradation of carrier-to noise-ratio  
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