基于高斯-勒让德积分的鲁棒波束形成算法

doi:10.12305/j.issn.1001-506X.2021.11.13

Abstract

Abstract:

Aiming at the high computational complexity existing in the covariance matrix reconstruction for the matrix reconstruction beamfoming algorithm, a robust beamforming algorithm based on Gauss-Legendre integral is proposed. Firstly, this method is based on the orthogonality among signal steering vectors and Gauss-Legendre integral to construct the interference space; Secondly, the snapshot data is projected into interference space to eliminate desired signal, and the interference-plus-noise covariance matrix reconstruction is finished; Finally, the mismatch of steering vector is corrected by projecting the quasi-array weight vector into signal space. Simulation results show that this method having good robustness under the condition of look direction errors or signal vector random error, which demonstrate the effectiveness of algorithm and reduce the computational complexity effectively.

Key words: robust beamforming, matrix reconstruction, Gauss-Legendre integral, steering vector mismatch

CLC Number:

TN911.7

Yongjie CHENG, Shuai LIU, Xue ZHANG, Ming JIN. Robust beamforming algorithm based on Gauss-Legendre integral[J]. Systems Engineering and Electronics, 2021, 43(11): 3144-3150.

Figures/Tables 6

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References 31

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波束形成算法	计算复杂度
本文方法	O(QM²L+M³)
文献[20]方法	O(M²S)
文献[23]方法	O(M^3.5)
文献[27]方法	O(max(M²J, M²P))

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Robust beamforming algorithm based on Gauss-Legendre integral

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