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新型GNSS信号波形设计

, PP. 1676-1681

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Abstract:

在发射带宽严格受限的约束下连续函数波形信号较传统矩形波形表现出了较高的频谱利用率优势和优良性能,很有可能应用到未来的全球卫星导航系统(GNSS,GlobalNavigationSatelliteSystem)信号体制中.在建立导航信号波形设计准则的理论模型基础上,研究了7种可能适用于未来GNSS系统的新型信号波形,在典型的宽/窄发射带宽条件下,通过仿真评估了传统GNSS信号和新型GNSS信号的精度、抗多径、抗干扰等性能,优选出BOCc和MSK两种适用于不同环境的信号波形在频谱资源充足的情况下,BOCc信号具有最优的导航性能;在频率资源受限的情况下,MSK信号兼容性好,抗干扰能力强,拥有较好的导航性能.最后,结合两类信号波形的优缺点提出了我国新一代卫星导航系统信号波形设计的建议.

References

[1]  Rodriguez J A A,Stefan Wallner,Stefan Wallner,et al.Study on a galileo signal and service plan for C-band //ION GNSS International Technical Meeting of the Satellite Division.Savannah:The Institute of Navigation,2008:2515-2529
[2]  Irisgler M,Hein G W,Schmitz-Peiffer A.Use of C-band frequencies for satellite navigation:benefits and drawbacks[J].GPS Solution,2004,8(3):119-139
[3]  Parkinson B W,Spilker Jr J J.Global positioning system:theory and applications volume1 [M].Washington DC:American Institute of Aeronautics and Astronautics Inc,1996
[4]  唐祖平,周鸿伟,胡修林,等.Compass导航信号性能评估研究[J].中国科学:物理、力学、天文学,2010(5):592-602 Tang Zuping,Zhou Hongwei,Hu Xiulin,et al.Research on perfor-mance evaluation of COMPASS signal [J].Scientia Sinica:Physica,Mechanica & Astronomica,2010(5):592-602 (in Chinese)
[5]  唐祖平,胡修林,黄旭芳.卫星导航信号设计中的抗多径性能分析[J].华中科技大学学报,2009,37(5):1-4 Tang Zuping,Hu Xiulin,Huang Xufang.Analysis of multipath rejection performance in GNSS signal design [J].Journal of Huazhong University of Science and Technology,2009,37(5):1-4 (in Chinese)
[6]  Betz J W.The offset carrier modulation for GPS modernization // Proceedings of the 1999 National Technical Meeting of The Institute of Navigation.San Diego:The Institute of Navigation,1999:639-648
[7]  Proakis John G.Digital communications[M].4th ed.New York:McGraw-Hill,2000

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