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

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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DS/SS Code Acquisition Scheme Based on Signed-Rank Statistic in Non-Gaussian Impulsive Noise Environments

비정규 충격성 잡음 환경에서 부호 순위 통계량에 바탕을 둔 직접수열 대역확산 부호 획득기법

  • 김상훈 (성균관대학교 정보통신공학부) ;
  • 안상호 (성균관대학교 정보통신공학부) ;
  • 이영윤 (성균관대학교 정보통신공학부) ;
  • 유승수 (건국대학교 전자공학부) ;
  • 윤석호 (성균관대학교 정보통신공학부)
  • Published : 2008.02.28
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Abstract

In this paper, a new detector is proposed for code acquisition, which employs the signs and ranks of the received signal samples, instead of their actual values, and so does not require knowledge of the non-Gaussian noise dispersion. The mean acquisition performance of the proposed detector is compared with that of the detector of $^{[1]}$. The simulation results show that the proposed scheme is not only robust to deviations from the true value of the non-Gaussian noise dispersion, but also has comparable performance to that of the scheme of $^{[1]}$ using exact knowledge of the non-Gaussian noise dispersion.

본 논문에서는 수신된 신호 표본의 실제 간 대신 신호 표본의 부호와 (sign) 순위를 (rank) 사용하기에, 비정규 충격성 잡음 (non-Gaussian impulsive noise) 분산의 (dispersion) 정보를 필요로 하지 않는 새로운 부호 획득을 위한 검파기를 제안하였다. 제안한 검파기의 평균 부호 획득 성능을 $^{[1]}$의 검파기와 비교하였다. 모의실험을 통해 제안한 기법의 성능을 살펴보면, 비정규 충격성 잡음 분산의 편차에도 (deviation) 강인한 성능을 지니며, 비정규 충격성 잡음의 정확한 분산 정보를 이용한 $^{[1]}$의 기법과 대등한 성능을 지니고 있음을 알 수 있다.

Keywords

References

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