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在阐述了各种BOC(binary offset carrier)调制技术(BOC调制是随着导航技术发展的需要提出的一种新的调制方式,可以实现频段共用、频谱分离并有很好的相关和抗干扰特性)的基本原理的基础上,介绍了一种在Matlab环境下建立BOC调制仿真模型的方法,给出了各种BOC调制的仿真频谱图并进行分析。仿真结果对于GNSS信号体制设计和工程实现有重要的指导意义。
Abstract：With the development of navigation technology,BOC(binary offset carrier) modulation was proposed for satellite navigation and positioning in recent years for its outstanding advantages such as good correlation,anti-jamming property,band sharing and spectral separability.The principles of several BOC modulations are elaborated here in the beginning,followed by an introduction of a method for establishing the BOC modulation model based on the technique of Matlab.The frequency spectrums of each BOC modulation are given in the end,and these modulation results will have an instructive meaning for GNSS signal system’s design and engineering implementation.
[1]战兴文.BOC调制技术研究[J].信息技术,2006,6:119-120.
[2]BETZ J W.Binary Offset Carrier Modulation for Radionavigation[J].Journal of the Institute of Navigation,2001/2002,48(4):227.
[3]HEIN G W,BETZ J W.MBOC:The New Optimized Spreading Modulation Recommended for GALILEO L1 OS and GPS L1C[C]//Proceedings of IEEE/ION Position,Location,and Navigation Symposium.IEEE,2006:883-892.
[4]LESTARQUIT L,ARTAUD G,ISSLER J L.AltBOC for Dummies or Everything You Always Wanted to Know About AltBOC[EB/OL].(2009-02-05)[2009-03-16].https://engineering.purdue.edu/AAE/Academics/Courses/aae575/2009/papers/altboc4d.
[5]REBEYROL E,MACABIAU C,LESTARQULT L,et al.BOC Power Spectrum Densities[C]//Proceedings of the 2005 National Technical Meeting of the Institute of Navigation.San Diego,California:ION,2005:769-778.
[6]胡修林,周艳玲,唐祖平.导航信号的BOC调制方式[J].无线电工程,37(3):31-33.
[7]王智,耿相铭.Galileo卫星导航系统中的BOC调制与接收技术[J].上海航天,2007,(6):49-55.
[8]海文汇,郭万有,罗永.基于Matlab/Simulink的BOC调制仿真[J].电子科技,2008,21(10):72,82,92.
[9]郝建军,何秋生,李辉,等.伽利略系统BOC信号的特性及码跟踪方法研究[J].电光与控制,2007,14(4):41,141,241,341.
基本信息:
中图分类号:P228.4
引用信息:
[1]贺成艳,卢晓春,王雪.GNSS的BOC调制及其仿真[J].时间频率学报,2009,32(02):134-141.
基金信息:
国家973计划资助项目(2007CB815502);; 中国科学院方向性资助项目(O808YC7701);; 国家863计划资助项目(2006AA12Z314)