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MVDR Algorithm Based on Estimated Diagonal Loading for Beamforming

机译：基于估计对角负载的MVDR波束形成算法

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摘要

Beamforming algorithm is widely used in many signal processing fields. At present, the typical beamforming algorithm is MVDR (Minimum Variance Distortionless Response). However, the performance of MVDR algorithm relies on the accurate covariance matrix. The MVDR algorithm declines dramatically with the inaccurate covariance matrix. To solve the problem, studying the beamforming array signal model and beamforming MVDR algorithm, we improve MVDR algorithm based on estimated diagonal loading for beamforming. MVDR optimization model based on diagonal loading compensation is established and the interval of the diagonal loading compensation value is deduced on the basis of the matrix theory. The optimal diagonal loading value in the interval is also determined through the experimental method. The experimental results show that the algorithm compared with existing algorithms is practical and effective.
机译：波束成形算法广泛应用于许多信号处理领域。当前，典型的波束成形算法是MVDR（最小方差无失真响应）。但是，MVDR算法的性能依赖于准确的协方差矩阵。 MVDR算法由于不精确的协方差矩阵而急剧下降。为了解决该问题，研究了波束成形阵列信号模型和波束成形MVDR算法，我们基于估计的对角线负荷改进了波束成形的MVDR算法。建立了基于对角线载荷补偿的MVDR优化模型，并基于矩阵理论推导了对角线载荷补偿值的区间。间隔中的最佳对角线荷载值也通过实验方法确定。实验结果表明，与现有算法相比，该算法是实用有效的。

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  • 来源
    《Mathematical Problems in Engineering》 |2017年第9期|7904356.1-7904356.7|共7页
  • 作者

    Xiao Yuteng; Yin Jihang; Qi Honggang; Yin Hongsheng; Hua Gang;

  • 作者单位

    China Univ Min & Technol, Xuzhou 221116, Peoples R China;

    China Univ Min & Technol, Xuzhou 221116, Peoples R China;

    Univ Chinese Acad Sci, Beijing 101408, Peoples R China;

    China Univ Min & Technol, Xuzhou 221116, Peoples R China;

    China Univ Min & Technol, Xuzhou 221116, Peoples R China;

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