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

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Code Tracking Scheme for Cosine Phased BOC Signals Based on Combination of Sub-correlations

부상관함수 결합에 기반한 Cosine 위상 BOC 코드 추적 기법

  • 이영포 (성균관대학교 정보통신공학부) ;
  • 김현수 (성균관대학교 정보통신공학부) ;
  • 윤석호 (성균관대학교 정보통신공학부)
  • Received : 2011.07.22
  • Accepted : 2011.09.05
  • Published : 2011.09.30
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Abstract

In this paper, we propose a novel unambiguous code tracking scheme for cosine phased binary offset carrier (BOC) signals. We first obtain the sub-correlation functions composing the BOC autocorrelation function, and then, re-combine the sub-correlation functions generating a correlation function with no side-peak. Finally, by using the correlation function with no side-peak in the delay lock loop, the proposed scheme performs unambiguous signal tracking. Numerical results demonstrate that the proposed scheme provides a performance improvement over the conventional unambiguous scheme in terms of the tracking error standard deviation (TESD).

본 논문에서는 cosine 위상 binary offset carrier (BOC) 신호를 위한 코드 추적 기법을 제안한다. BOC 자기상관함수는 다수의 부상관함수들로 이루어져 있으며, 본 논문에서는 이러한 부상관함수들을 재결합함으로써 주변첨두가 없는 새로운 상관함수를 획득한다. 마지막으로 delay lock loop 에서 사용되는 자기상관함수를 제안한 상관함수로 대체함으로써 주변첨두로 인한 false lock 문제를 해결한다. 또한 모의실험 결과를 통해 제안한 기법이 기존의 기법에 비해 더 좋은 tracking error standard deviation (TESD) 성능을 가지는 것을 보인다.

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References

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