期刊文献+

基于FFT的伪随机码快速捕获设计与实现

Design and Implementation of Pseudo-random Code Acquisition Based on FFT
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摘要 本文介绍了基于FFT的伪随机码快速捕获的原理,并且对快速捕获模块的核心单元,即采样率转换单元和FFT/IFFT计算单元的FPGA实现进行了详细论述。仿真和实现结果表明,此方法能快速地捕获扩频信号中的伪随机码相位。 This paper introduces the theory of Pseudo-random code acquisition based on FFT.The FPGA implementation of two most important modules, sampling rate conversion module and FFT/IFFT calculation module, is described in detail. Simulation results show that this method implements Pseudo-random code rapid acquisition and reasonable hardware resource utilization under low sig- nal-noise ratio and high data modulation rate.
作者 万灵
出处 《科技广场》 2010年第9期35-37,共3页 Science Mosaic
关键词 扩频通信 快速捕获 现场可编程门阵列 快速傅里叶变换 Spread Spectrum Communication Rapid Acquisition FPGA FFT
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参考文献4

  • 1DJR Van Nee,AJRM Coenen.New Fast GPS code-acquisition technique using FFT[J].Electronics Letters,1991,27(2):158-160.
  • 2Cillian O' Driscoll,Colin C.Murphy.Performance Analysis of an FFT Based Fast Acquisition GPS Receiver[A].In:ION NTM 2005[C].San Diego CA:ION,2005:1014-1025.
  • 3David M.Lin.Sensitivity Limit of A Stand-Alone GPS Receiver and An Acquisition Method[A].In:ION GPS 2002[C].Porland OR:ION,2002:1663-1667.
  • 4金俊坤,吴嗣亮,李菊.基于基2-FFT的伪码快速捕获实现新算法[J].系统工程与电子技术,2005,27(11):1957-1960. 被引量:17

二级参考文献3

  • 1Psiaki Mark L, Block acquisition of weak GPS signals in a software receiver[A]. Proceedings of the 14th International Technical Meeting of the Satellite Division of the Institute of Navigation ION GPS 2001[C]. 2001. 2838-2870.
  • 2Van Nee D J R, Coenen A J R M. New fast GPS code-acquisition technique using FFT[J]. Electronics Letters, 1991, 27: 158-160.
  • 3Davenport Robert G. FFT processing of direct sequence spreading codes using modem DSP Microprocessors[A]. Proceedings of the IEEE 1991 National on Aerospace and Electronics Conference[C].1991. 98- 105.

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