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针对目前我国在轨运行的北斗卫星导航信号采用正交相移键控调制方式,而二进制偏移载波调制/解调技术尚未被成熟掌握的情况,提出了BOC(10,5)信号发生器的硬件设计方案。系统设计中,采用了层次化的、基于VHDL语言的设计流程。首先介绍了BOC调制技术的原理,分析研究了基于Xilinx ISE14.4软件和Zynq-7000 FPGA器件的软件无线电的BOC调制信号发生器的实现方法,并在由上海德致伦电子科技有限公司提供的ZYBO(ZYNQ XC7Z010-1CLG400C,Zynq Board)开发平台上进行了调试和验证,对北斗接收机的研发具有一定的指导价值。
Abstract：In view of that the BOC(binary offset carrier) modulation is superior to the QPSK(quadrature phase shift keying) modulation method used by the Beidou navigation satellite system(BDS), a hardware design scheme of BOC(10,5) modulated signal generator is put forward. The system design is a hierarchical, VHDL-based design. In this paper, the BOC modulation principle is introduced first. Then, the design and implementation of a software BOC modulated signal generator based on the Xilinx ISE14.4 software & the Zynq-7000 FPGA is analysed and studied. Finally, a hardware realization is performed on ZYBO(ZYNQ XC7Z010-1CLG400 C, Zynq Board) provided by Digilent China, which verifies the design of the BOC modulated signal generator. It is considered to be of significance to BDS receiver design.
[1]HAYKIN S.Communication Systems[M].Beijing:Publishing House of Electronics Industry,2012:420-446.
[2]谢钢.GPS原理与接收机设计[M].北京:电子工业出版社,2009:16-40.
[3]邱致和.GPSM码信号的BOC调制[J].导航,2005,3(1):1-18.
[4]战兴文.BOC调制技术研究[J].信息技术,2006,6:119-120.
[5]钟鸣,冯永新,周丹.BOC调制信号发生器原型系统的设计与实现[J].沈阳理工大学学报,2008,27(5):42-46.
[6]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(2):134-142.
[7]陈忠贵,帅平,曲广吉.现代卫星导航系统技术特点与发展趋势分析[J].中国科学E辑:技术科学,2009,39(4):686-696.
[8]CHEN Chang-xing,BIAN Dong-liang,PENG Sha-sha,et al.A detest algorithm based on BOC signal modulation technology[C]//Proceedings of 2012 IEEE 11th International Conference on Signal Processing(ICSP 2012),Beijing:IEEE Beijing Section,2012,2:1337-1340.
[9]QU Bo,WEI Jiao-long,TANG Zu-ping,et al.Correlation side-peaks cancellation technique for Sine-BOC signal tracking[C]//China Satellite Navigation Conference(CSNC)2014 Electronic Proceedings,Nanjing:Academic Exchange Center of China Satellite Navigation Office,2014,1:629-639.
[10]CHEN Hui-hua,JIA Wei-min,YAO Min-li.Cross-correlation function based multipath mitigation technique for cosine-BOC signals[J].Journal of Systems Engineering and Electronics,2013,24(5):742-748.
[11]JANUSZEWSKI J.Modernization of satellite Navigation Systems and theirs New Maritime Applications[J].Transnav International Journal on Marine Navigation&Safety Od Sea Transportation,2007,1(1):77-82.
[12]BETZ J W.Binary offset carrier modulation for radio navigation[J].Journal of the Institute of Navigation,2001,48(4):222-225.
[13]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):27-31.
[14]张灿,陈南.北斗二代导航信号抗干扰性能分析与研究[D].西安:西安电子科技大学,2013.
[15]谢钢.全球导航卫星系统原理—GPS、格洛纳斯和伽利略系统[M].北京:电子工业出版社,2013:48-86.
[16]中国卫星导航系统管理办公室.北斗卫星导航系统空间信号接口控制文件公开服务信号(2.0版)[S].北京:中国卫星导航系统管理办公室,2013.
[17]曾庆化,刘建业,赵伟,等.全球导航卫星系统[M].北京:国防工业出版社,2014:204-212.
[18]袁润平,翟建勇,王伟.卫星导航系统中的BOC调制和接收技术分析[J].现代导航,2013,(4):252-258.
[19]李卉,李海龙,徐东辉.BOC调制信号频谱特性及仿真分析[J].现代电子技术,2012,35(19):161-165.
[20]高书亮,黄智刚,杨东凯.基于DDS的BOC(m,n)信号发生器及其FPGA实现[J].数据采集与处理,2009,24(2):243-248.
[21]张博,张斌.基于FPGA的数字频率合成器设计与实现[J/QL].应用科技,2015,(1):28-32.
基本信息:
DOI：10.13875/j.issn.1674-0637.2016-01-0015-10
中图分类号:TN967.1
引用信息:
[1]张博,张斌.基于FPGA的BOC(10,5)调制信号发生器设计与实现[J].时间频率学报,2016,39(01):15-24.DOI:10.13875/j.issn.1674-0637.2016-01-0015-10.
基金信息:
国家自然科学基金资助项目(61273049)
2016-03-07
2016-03-07
2016-03-07