The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Adaptive Filter Based PN Code Phase Acquisition Under Frequency Selective Rayleigh Fading Channels

  • Lee, Donghoon (Samsung Electronics) ;
  • Kim, Jeongchang (Department of Electronics and Communications Engineering, Korea Maritime University) ;
  • Cheun, Kyungwhoon (Division of Information Technology Convergence Engineering, Pohang University of Science and Technology (POSTECH))
  • Received : 2013.02.12
  • Accepted : 2013.04.17
  • Published : 2013.05.31
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Abstract

A hybrid PN code phase acquisition system based on a least-mean-square adaptive filter, interpreted as a channel estimator is proposed and analyzed for direct-sequence spread-spectrum systems under frequency selective Rayleigh fading channels. Closed form expressions are derived for the filter tap weights and detection/false alarm probabilities. Compared to previously proposed systems, the proposed system achieves smaller mean acquisition times, is more robust to the operating signal-to-noise ratio and allows for multiplication free tap weight updates.

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References

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