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

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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A Novel Unambiguous Correlation Function for Cosine-Phased BOC Signal Tracking

코사인 위상 이진 옵셋 반송파 신호 추적에 알맞은 새로운 비모호 상관함수

  • 김홍득 (성균관대학교 정보통신대학) ;
  • 이영석 (성균관대학교 정보통신대학) ;
  • 윤석호 (성균관대학교 정보통신대학)
  • Received : 2013.04.08
  • Accepted : 2013.04.25
  • Published : 2013.05.31
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Abstract

In this paper, we propose a correlation function using newly designed local signals for cosine-phased binary offset carrier (BOC) signal tracking. First, we divide a sub-carrier pulse over one pseudo random noise code period into multiple rectangular pulses, and subsequently, design novel local signals. Then, we obtain a correlation function with no side-peak based on a combination of correlations between the newly generated local signals and received cosine-phased BOC signal. From numerical results, it is confirmed that the proposed correlation function provides a tracking performance improvement over the conventional correlation functions in terms of the tracking error standard deviation.

본 논문에서는 코사인 위상 이진 옵셋 반송파 (binary offset carrier: BOC) 신호 추적에 알맞은 새로운 비모호 상관함수를 제안한다. 구체적으로는 코사인 위상 BOC 신호를 의사잡음코드의 칩 하나 안에 다수의 부반송파 펄스가 존재하는 형태로 해석하고, 그에 따른 새로운 국소신호들을 설계한다. 이후 새로운 국소신호들과 수신된 코사인 위상 BOC 신호를 상관하여 재조합함으로써 주변 첨두가 없는 새로운 비모호 상관함수를 생성한다. 모의실험을 통해 제안한 상관함수를 이용한 경우 기존의 상관함수들을 이용한 경우들에 비해 더욱 향상된 추적 오차 표준편차를 가지는 것을 확인한다.

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References

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