A Blind Spatial Signature Estimation Algorithm Based on 4th Order Cumulant

Zhou Wei; Zhou Zheng-zhong; Zhang De-min

doi:10.3724/SP.J.1146.2005.00597

Volume 29 Issue 1

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Zhou Wei, Zhou Zheng-zhong, Zhang De-min. A Blind Spatial Signature Estimation Algorithm Based on 4th Order Cumulant[J]. Journal of Electronics & Information Technology, 2007, 29(1): 101-104. doi: 10.3724/SP.J.1146.2005.00597

Citation:

Zhou Wei, Zhou Zheng-zhong, Zhang De-min. A Blind Spatial Signature Estimation Algorithm Based on 4th Order Cumulant[J]. Journal of Electronics & Information Technology, 2007, 29(1): 101-104. doi: 10.3724/SP.J.1146.2005.00597

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A Blind Spatial Signature Estimation Algorithm Based on 4th Order Cumulant

doi: 10.3724/SP.J.1146.2005.00597

Received Date: 2005-05-30
Rev Recd Date: 2005-10-08
Publish Date: 2007-01-19

Abstract

Abstract

Based on uniform linear array and 4th order cumulant of array output signals, a novel blind algorithm for spatial signature estimation was presented in this paper, and was applied to estimate spatial signature of multi-user with coherent multi-path. Using 4th order cumulant, the author constructed a spatial signature matrix , and then proved that multi-users spatial signature can be obtained through eigen decomposition of the matrix. The algorithm is not depended upon the specific characteristic of signal, and can be employed to additive arbitrary Gaussian (white or colored) noise. Theoretical analysis and computer simulation confirmed the availability and robustness of the algorithm.

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References

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