Journal of the Institute of Electronics Engineers of Korea TC (대한전자공학회논문지TC)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Cross-Correlation Eliminated Beamforming Based on the DOA Estimation of Interference using Correlation Matrix

상관행렬로부터 간섭신호 도달각을 추정하여 상호상관 성분을 제거하는 빔형성 방법

  • Published : 2006.10.25
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Abstract

In this paper, we propose new beamforming algorithm which overcomes signal cancellation effect even high cross correlation existing between target and interfering signal. Using the proposed method, we show that direction of arrival (DOA) of interfering signal can be estimated using correlation matrix and the cross-correlation can be eliminated in the correlation matrix of input signal. The proposed method gives high performance enhancement compared with the spatial averaging method in our computer simulation results.

목표신호와 간섭신호 사이에 상호 상관성분이 크게 존재할 경우에도 성능저하를 극복할 수 있는 새로운 빔형성 알고리듬을 제안한다. 제안하는 방식을 이용하여 상관행렬로부터 간섭신호의 도달각을 바로 구하고 입력신호의 상관행렬 내에 존재하는 상호상관 성분을 제거할 수 있음을 보였다. 제안한 방식을 적용하였을 경우에는 공간평균(Spatial Averaging)을 사용하는 것에 비해서 간섭신호의 크기를 줄이는 데 있어서 성능향상이 있음을 모의실험 결과를 통해서 보였다.

Keywords

References

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