The Journal of the Korea institute of electronic communication sciences (한국전자통신학회논문지)

Korea Institute of Electronic Communication Science (한국전자통신학회)
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Analysis and Simulation of Signal Acquisition of GPS Software Receiver

SGR에서 신호처리과정의 분석과 시뮬레이션

  • 장위 (북경석유화학원 정보공과대학) ;
  • 서희종 (전남대학교 전자통신공학과)
  • Received : 2010.12.12
  • Accepted : 2011.02.09
  • Published : 2011.02.28
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Abstract

In this paper, for a software-based Global Positioning System receiver (SGR), the principle capturing Global Positioning System (GPS) signal is researched extensively in order to analyze the processing of the GPS raw data signal at the lowest level, and the process of capturing the GPS signal was simulated by Matlab. The simulation results show the accuracy and the feasibility of this method, which is comparable to study under a true environment. We know that the improvement of the receiving facilities is of very vital significance to the performance of this system, and the fine frequency can be found through comparing phases within a few tens of Hertz.

본 논문에서는 SGR(software-based Global Positioning System receiver)에서 GPS(Global Positioning System)의 자료처리과정을 분석하기 위해서, GPS 신호의 수신방법을 심도있게 분석했다. 그리고 이 처리과정을 Matlab를 사용해서 모의실험을 했다. 실험결과, 이 분석방법의 타당성을 찾을 수 있었고, 이 실험은 실제 환경조건에서와 일치함을 확인할 수 있었다. 또 SGR의 성능을 향상시키기 위해서는 수신기의 성능을 향상시켜야 한다는 사실을 확인 할 수 있었는데, 동조되는 최적의 주파수는 수십 Hertz내에서 위상을 비교해서 찾을 수 있었다.

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References

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