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- W2029089779 abstract "본 논문에서는 위성항법 시스템에서 (global navigation satellite system: GNSS) 사용되는 이진 옵셋 반송파(binary offset carrier: BOC) 신호 상관함수의 주변 첨두 때문에 발생하는 신호 획득 문제에 대해 소개한다. 우선 BOC 신호의 상관함수를 분석하여 상관함수의 주변 첨두가 불규칙한 형태를 갖는 부 상관함수들의 결합을 통해 형성된다는 점을 관찰하며, 관찰 결과를 바탕으로 cyclostationarity를 지니는 부 상관함수들의 재조합에 기반을 둔 신호 획득 기법을 제안한다. 제안한 기법은 모든 BOC 신호에 적용되어 주변 첨두를 완벽히 제거할 수 있으며, 모의실험을 통해 제안한 기법이 기존의 기법들에 비해 더 나은 평균 신호 획득 시간 (mean acquisition time: MAT) 성능을 제공함을 보인다. This paper addresses the problem in the acquisition of binary offset carrier (BOC) signals employed in global navigation satellite systems, which is caused by the multiple side-peaks of the BOC autocorrelation function. We first observe that the side-peaks arise due to the fact that the BOC autocorrelation is made up of the sum of the sub-correlations shaped irregularly, and then, propose a novel acquisition scheme based on a recombination of the sub-correlations with cyclostationarity. The proposed scheme is demonstrated to remove the side-peaks completely for any type of BOC signal and to provide a performance improvement over the conventional schemes in terms of the mean acquisition time." @default.
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- W2029089779 date "2011-07-30" @default.
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- W2029089779 title "A BOC Signal Acquisition Scheme Based on Recombination of Sub-correlation Functions with Cyclostationarity" @default.
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- W2029089779 doi "https://doi.org/10.7840/kics.2011.36c.7.459" @default.
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