基于通用无线电外设的北斗信号仿真系统
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摘要
研究了基于通用软件无线电外设(USRP)的北斗信号仿真系统。给出了北斗卫星电文的生成方式,使用Matlab读取星历信息并定义编码产生北斗卫星信号,并利用USRP实现北斗卫星电文的调制发射,利用接收机对该信号进行捕获接收,并对信号附加的多普勒频移进行仿真。最后通过接收机对仿真系统产生的信号进行接收验证。通过此仿真系统可更直观地研究北斗卫星信号,对研究北斗卫星导航系统具有一定的参考意义。
Beidou signal simulation system based on universal software radio peripheral(USRP) is studied in this paper. Beidou satellite message generating method is given, Matlab is used to read ephemeris and define code to generate Beidou satellite signal, and USRP is used to realize the modulated emission of Beidou satellite message, then this signal is captured and received by the receiver, and Doppler frequency shift of signal added is simulated, finally, the receiver received the signal from the simulation system and verified it. Through this simulation system, Beidou satellite signal can be more intuitively and conveniently studied, which has certain reference significance for the research of Beidou satellite navigation system.
Beidou signal simulation system based on universal software radio peripheral(USRP) is studied in this paper. Beidou satellite message generating method is given, Matlab is used to read ephemeris and define code to generate Beidou satellite signal, and USRP is used to realize the modulated emission of Beidou satellite message, then this signal is captured and received by the receiver, and Doppler frequency shift of signal added is simulated, finally, the receiver received the signal from the simulation system and verified it. Through this simulation system, Beidou satellite signal can be more intuitively and conveniently studied, which has certain reference significance for the research of Beidou satellite navigation system.
引文
[1] 鲍亚川, 蔚保国, 秦明峰, 等. 北斗GEO/IGSO卫星导航信号多径效应仿真研究[J]. 系统仿真学报, 2017, 29(5): 1057-1063. Bao Yachuan, Wei Baoguo, Qin Mingfeng, et al. Simulation research on multipath effect of Beidou GEO/IGSO satellite navigation signal[J]. Journal of System Simulation, 2017, 29(5): 1057-1063(in Chinese).
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[3] 周兵, 陈向东, 赵齐乐. 北斗系统与GPS应用比较分析[J]. 全球定位系统, 2012, 37(4): 6-8. Zhou Bing, Chen Xiangdong, Zhao Qile, et al. Comparative analysis of Beidou system and GPS applica-tion[J]. Global Positioning System, 2012, 37(4): 6-8(in Chinese).
[4] 赵乐文, 叶世榕, 章太馨, 等. 北斗三频RTK定位算法研究[J]. 导航定位与授时, 2014, 1(3):47-51. Zhao Lewen, Ye Shirong, Zhang Taixin, et al. Research on Beidou tri-band RTK positioning algorithm[J]. Navigation Positioning and Timing, 2014, 1(3): 47-51(in Chinese).
[5] 王伟, 陈亮. 基于USRP平台的高灵敏度GNSS接收机算法研究[J]. 信息技术, 2016, 10(15): 56-60. Wang Wei, Chen Liang. Research on high sensitivity GNSS receiver algorithm based on USRP platform[J]. Infomation Technology, 2016,10(15):56-60(in Chinese).
[6] 张鹏, 孙余福, 徐亚明, 等. 基于USRP平台的GPS软件接收机设计与实现[J]. 测绘通报, 2012(11): 55-58. Zhang Peng, Sun Yufu, Xu Yaming, et al. Design and implementation of GPS software receiver based on USRP platform[J]. Surveying and Mapping Bulletin, 2012(11): 55-58(in Chinese).
[7] 赵磊, 张云, 韩彦岭, 等. 北斗系统三频单点定位性能研究[J]. 测绘科学,2015,40(7):8-14. Zhao Lei, Zhang Yun, Han Yanling, et al. Research on single frequency positioning performance of Bei-dou system[J]. Science of Surveying and Mapping, 2015, 40(7): 8-14(in Chinese).
[8] 杨逢宇, 江月松, 张文娟, 等. 北斗卫星导航系统中频信号的产生方法[J]. 海军航空工程学院学报, 2013, 28(5): 493-498. Yang Fengyu, Jiang Yuesong, Zhang Wenjuan, et al. Method for generating intermediate frequency signals of Beidou satellite navigation system[J]. Journal of Naval Aeronautical Engineering Institute, 2013, 28(5): 493-498(in Chinese).
[9] Zhang W, Wu Y, Dou Z, et al. Modified sliding correlate algorithm of Beidou B1 signal[C]// 2016 6th International Conference on Instrumentation & Measurement, Computer, Communication and Control (IMCCC). IEEE, 2016: 733-736.
[10] Wang E, Zhang Z, Cai M. A study on BeiDou positioning performance analysis platform based on LabVIEW[C]// 2013 8th IEEE Conference on Industrial Electronics and Applications (ICIEA). IEEE, 2013: 963-967.
[11] Holland O, Bogucka H, Medeisis A. The Universal Software Radio Peripheral (USRP) family of low-cost SDRs[M]// Opportunistic Spectrum Sharing and White Space Access: The Practical Reality. John Wiley & Sons, Inc, 2015: 3-23.
[2] 李金龙, 唐斌, 郭海荣, 等. 新一代北斗试验卫星伪距质量初步评估[J]. 导航定位与授时, 2017, 4(4): 66-73. Li Jinlong, Tang Bin, Guo Hairong, et al. Preliminary evaluation of pseudorange quality of a new generation of Beidou test satellite[J]. Navigation Positioning and Timing, 2017, 4(4): 66-73(in Chinese).
[3] 周兵, 陈向东, 赵齐乐. 北斗系统与GPS应用比较分析[J]. 全球定位系统, 2012, 37(4): 6-8. Zhou Bing, Chen Xiangdong, Zhao Qile, et al. Comparative analysis of Beidou system and GPS applica-tion[J]. Global Positioning System, 2012, 37(4): 6-8(in Chinese).
[4] 赵乐文, 叶世榕, 章太馨, 等. 北斗三频RTK定位算法研究[J]. 导航定位与授时, 2014, 1(3):47-51. Zhao Lewen, Ye Shirong, Zhang Taixin, et al. Research on Beidou tri-band RTK positioning algorithm[J]. Navigation Positioning and Timing, 2014, 1(3): 47-51(in Chinese).
[5] 王伟, 陈亮. 基于USRP平台的高灵敏度GNSS接收机算法研究[J]. 信息技术, 2016, 10(15): 56-60. Wang Wei, Chen Liang. Research on high sensitivity GNSS receiver algorithm based on USRP platform[J]. Infomation Technology, 2016,10(15):56-60(in Chinese).
[6] 张鹏, 孙余福, 徐亚明, 等. 基于USRP平台的GPS软件接收机设计与实现[J]. 测绘通报, 2012(11): 55-58. Zhang Peng, Sun Yufu, Xu Yaming, et al. Design and implementation of GPS software receiver based on USRP platform[J]. Surveying and Mapping Bulletin, 2012(11): 55-58(in Chinese).
[7] 赵磊, 张云, 韩彦岭, 等. 北斗系统三频单点定位性能研究[J]. 测绘科学,2015,40(7):8-14. Zhao Lei, Zhang Yun, Han Yanling, et al. Research on single frequency positioning performance of Bei-dou system[J]. Science of Surveying and Mapping, 2015, 40(7): 8-14(in Chinese).
[8] 杨逢宇, 江月松, 张文娟, 等. 北斗卫星导航系统中频信号的产生方法[J]. 海军航空工程学院学报, 2013, 28(5): 493-498. Yang Fengyu, Jiang Yuesong, Zhang Wenjuan, et al. Method for generating intermediate frequency signals of Beidou satellite navigation system[J]. Journal of Naval Aeronautical Engineering Institute, 2013, 28(5): 493-498(in Chinese).
[9] Zhang W, Wu Y, Dou Z, et al. Modified sliding correlate algorithm of Beidou B1 signal[C]// 2016 6th International Conference on Instrumentation & Measurement, Computer, Communication and Control (IMCCC). IEEE, 2016: 733-736.
[10] Wang E, Zhang Z, Cai M. A study on BeiDou positioning performance analysis platform based on LabVIEW[C]// 2013 8th IEEE Conference on Industrial Electronics and Applications (ICIEA). IEEE, 2013: 963-967.
[11] Holland O, Bogucka H, Medeisis A. The Universal Software Radio Peripheral (USRP) family of low-cost SDRs[M]// Opportunistic Spectrum Sharing and White Space Access: The Practical Reality. John Wiley & Sons, Inc, 2015: 3-23.