Journal of Institute of Control, Robotics and Systems (제어로봇시스템학회논문지)

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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Design of Efficient Frequency Discriminator for Weak Signal Tracking

미약신호 추적을 위한 효율적인 주파수 변별기 설계

  • 임성혁 (건국대학교 전자.정보통신공학과) ;
  • 지규인 (건국대학교 전자.정보통신공학과)
  • Published : 2009.06.01
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Abstract

In this paper, an frequency tracking algorithm for weak signal tracking is proposed. The proposed frequency tracking algorithm uses a FMS (Fast Minus Slow) discriminator for frequency error estimation. This frequency tracking algorithm shows good frequency estimation performance under weak signal condition and is a computationally efficient for embedded software GNSS receiver. The software GNSS receiver implementing the proposed weak signal tracking algorithms could track GPS signal down to - 159dBm signal strength in the signal generator test and real GPS signal under dense urban condition.

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References

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