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Volume 28 Issue 3
Mar.  2002
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Journal of Beijing University of Aeronautics and Astronautics  > 2002  >  28(3): 358-361.
LUO Xing-yu, ZHANG Qi, CHANG Qinget al. Control Strategy and Implementation for Acquiring C/A Code of High Dynamic GPS Signals[J]. Journal of Beijing University of Aeronautics and Astronautics, 2002, 28(3): 358-361. (in Chinese)
Citation: LUO Xing-yu, ZHANG Qi, CHANG Qinget al. Control Strategy and Implementation for Acquiring C/A Code of High Dynamic GPS Signals[J]. Journal of Beijing University of Aeronautics and Astronautics, 2002, 28(3): 358-361. (in Chinese)
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Control Strategy and Implementation for Acquiring C/A Code of High Dynamic GPS Signals

  • Beijing University of Aeronautics and Astronautics, Dept. of Electronic Engineering

  • Received Date: 19 Mar 2001
  • Publish Date: 31 Mar 2002
    Abstract
  • It is necessary to design acquisition and tracking system for code loop and carrier loop in order to detect high dynamic GPS signals. Acquiring signal quickly and shortening acquisition time in the cold case are the key technologies of high dynamic GPS receiver. Moreover, fast acquisition of C/A code is the base of code tracking and carrier acquisition and tracking. This paper describes elements and implementation of parallel search precept and sequential search precept to acquire C/A code of high dynamic GPS signal. And combined with a 12-channel correlator named GP2021 produced by GEC Co., the arithmetic implementation to acquire C/A code of high dynamic GPS signal used sequential search precept based on DSP technology is also given.

     

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  • [1]Daffrara F,Vinson P.Improved search algorithm for fast acquisition in a DSP-based GPS receicer[J].IEEE Tran on Com,1998.310~314. [2]朱近康.扩展频谱通信及其应用[M].合肥:中国科学技术大学出版社,1993. 182~204. [3]孙 礼,王银锋, 何 川,等. GPS信号捕获与跟踪策略确定及实现[J]. 北京航空航天大学报,1999,25(2):134~137. [4]陆 娟. DSP技术在高动态GPS接收机中的应用 . 北京航空航天大学电子工程系,2000.
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