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 Side-Peak Cancellation Technique for Composite Binary Offset Carrier Signals for E-Navigation

E-Navigation을 위한 합성 이진 옵셋 반송파 신호에 알맞은 주변 첨두 제거 기법

  • Chae, Keunhong (Sungkyunkwan University, College of Information & Communication Engineering) ;
  • Lee, Seong Ro (Mokpo National University, Department of Information and Electronics Engineering) ;
  • Yoon, Seokho (Sungkyunkwan University, College of Information & Communication Engineering)
  • Received : 2014.05.02
  • Accepted : 2014.07.09
  • Published : 2014.07.31
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Abstract

In this paper, we propose a side-peak cancellation technique of composite binary offset carrier (CBOC) signals for e-navigation. First, we divide a CBOC sub-carrier into several sub-carrier pulses, and then, observe that CBOC autocorrelation is the sum of multiple sub-correlation functions. Finally, we propose a novel correlation function with no side-peak and a sharp main-peak by combining the sub-correlation functions to improve the positioning accuracy. From numerical results, we confirm that the proposed correlation function with a sharp main-peak provides a better positioning performance than the conventional correlation functions in terms of the tracking error standard deviation.

본 논문에서는 e-navigation을 위한 합성 이진 옵셋 반송파 (composite binary offset carrier: CBOC) 신호에 알맞은 주변 첨두 제거 기법을 제안한다. 우선, CBOC 신호의 부반송파를 일정한 폭을 갖는 여러 개의 부분 부반송파 펄스로 나누고, 그에 따라 CBOC 자기상관함수를 여러 개의 부분상관함수의 합으로 해석한다. 다음으로, 주변 첨두를 제거할 뿐만 아니라 측위 성능 향상을 위해 부분상관함수를 조합하여 뾰족한 주 첨두를 갖는 새로운 상관함수를 제안한다. 모의실험을 통해 제안한 상관함수가 기존 상관함수들보다 측위 성능이 더 좋다는 것을 보인다.

Keywords

References

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