中国民航大学学报

• 管理科学 • 上一篇    下一篇

基于FPGA的高动态GPS信号实时捕获设计

胡铁乔,孟田田   

  1. (中国民航大学电子信息与工程学院,天津300300)
  • 收稿日期:2012-06-07 修回日期:2012-11-13 出版日期:2013-08-25 发布日期:2013-10-08
  • 基金资助:

    国家自然科学基金项目(61172112;61179064);天津市科技支撑计划重点项目-民航科技专项(10ZCKFGX04000);中央高校基本科研业务费专项(ZXH2009A003;ZXH2012M006)

Design for fast acquiring of high dynamic GPS signal based on FPGA

HU Tie-qiao,MENG Tian-tian   

  1. (College of Electronic and Information Engineering,CAUC,Tianjin 300300,China)
  • Received:2012-06-07 Revised:2012-11-13 Online:2013-08-25 Published:2013-10-08
  • Supported by:

    胡铁乔(1970—),男,河南洛阳人,副教授,硕士,研究方向为自适应阵列信号处理,卫星导航等.

摘要:

提出了一种高动态环境下GPS 接收机实时捕获的FPGA硬件实现方案。此方案针对高动态环境下GPS接收机对信号捕获速度的要求和当前硬件平台,在平均采样预处理后,选取5 组数据中的2 组进行捕获,以捕获精度的较小降低为代价实现单颗GPS 卫星信号的实时捕获。通过对高动态环境下模拟信号捕获过程的仿真和硬件实现,验证了此种捕获方法的正确性和可行性。

关键词: 实时捕获, 高动态, GPS 接收机, FPGA

Abstract:

A realization scheme of hardware receiver system using for the fast acquiring of high dynamic GPS signal is proposed. According to the acquiring speed requirements of the GPS receiver and the hardware platform,this scheme chooses 2 sets of average samples among 5 sets after the averaging sampling technique processing. It realizes the real-time acquiring of the single satellite GPS signals in cost of small accuracy decline. The simulation results and the hardware implementation results of the high dynamic GPS signal show the validity and the feasibility of the method.

Key words: real-time acquiring, high dynamic, GPS receiver, FPGA

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