J4 ›› 2013, Vol. 40 ›› Issue (1): 183-188.doi: 10.3969/j.issn.1001-2400.2013.01.031

• 研究论文 • 上一篇    下一篇

基于PXI射频测试平台的多模卫星信号模拟器

侯博;刘光斌   

  1. (解放军第二炮兵工程大学 303教研室,陕西 西安  710025)
  • 收稿日期:2011-10-08 出版日期:2013-02-20 发布日期:2013-03-28
  • 通讯作者: 侯博
  • 作者简介:侯博(1988-),男,解放军第二炮兵工程大学博士研究生,E-mail:houbo1988@163.com.
  • 基金资助:

    国家自然科学基金资助项目(61201120)

Design and implementation of a multi-mode GNSS signal  simulator on the PXI RF test platform

HOU Bo;LIU Guangbin   

  1. (No.303 T&R Section, The Second Artillery Eng. Univ. of PLA, Xi'an  710025, China)
  • Received:2011-10-08 Online:2013-02-20 Published:2013-03-28
  • Contact: HOU Bo

摘要:

应用卫星导航、软件无线电等技术,研制了可以实现GPS L1、GLONASS L1、北斗一号、北斗二号B1和B3四系统五频点信号仿真的多模卫星信号模拟器.基于NI PXI射频测试平台选择了DDS中频信号合成和3次上变频的仿真信号生成方案,设计了基于混合编程和多线程的软件架构及其效率提高方法.使用多款成熟商业接收机,验证了模拟器仿真信号的正确性和有效性.

关键词: 卫星信号模拟器, 多模, PXI, GPS, GLONASS, 北斗

Abstract:

A multi-mode GNSS signal simulator, which is capable of simulating GPS L1, GLONASS L1, Beidou1, Beidou2 B1 and B3 signals, has been developed based on the NI PXI RF Test Hardware Platform. Technologies such as satellite navigation, software radio have been applied in the development process. DDS-based IF signal synthesis and three-stage up-converting methods have been chosen for simulated signal generation. Its software composition and execution efficiency optimization by hybrid programming and multi-threading are especially discussed. Simulated signals have been verified by off-the-shelf GNSS receivers.

Key words: GNSS signal simulator, multi-mode, PXI, GPS, GLONASS, Compass

中图分类号: 

  • TP337