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Eigenspace-based beamforming technique for multipath coherent signals reception

机译:基于本征空间的波束形成技术,用于多径相干信号接收

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摘要

A novel eigenspace-based beamforming technique is presented for receiving multipath coherent signals in the presence of uncorrelated interferences. Firstly, a subaperture minimum variance distortionless response beamformer based on spatial smoothing is applied, and then its weights are projected onto the signal-plus-interference subspace of the full-aperture data covariance matrix to obtain the multipath signals combination beamformer. Theoretical analysis has proved the proposed method can effectively get the coherent signals combination gain without reducing array aperture. Due to the employment of eigenspace, our method requires less prior information and converges faster than existing solutions. Simulation examples illustrate the effectiveness of the proposed technique.
机译:提出了一种新颖的基于本征空间的波束形成技术,用于在存在不相关干扰的情况下接收多径相干信号。首先,应用基于空间平滑的子孔径最小方差无失真响应波束形成器,然后将其权重投影到全孔径数据协方差矩阵的信号加干扰子空间上,以获得多径信号组合波束形成器。理论分析证明,该方法可以有效地获得相干信号组合增益,而不会减小阵列孔径。由于使用了本征空间,因此与现有解决方案相比,我们的方法所需的先验信息更少,并且收敛速度更快。仿真实例说明了所提出技术的有效性。

著录项

  • 来源
    《Signal processing》 |2016年第11期|150-154|共5页
  • 作者

    Cheng Wang; Jun Tang; Ying Wu;

  • 作者单位

    National Digital Switching System Engineering and Technology Research Center, Zhengzhou 450002, China;

    Department of Electronic Engineering, Tsinghua University, Beijing 100084, China;

    National Digital Switching System Engineering and Technology Research Center, Zhengzhou 450002, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Multipath coherent signals; Spatial smoothing; Eigenspace-based beamformer;

    机译:多径相干信号;空间平滑;基于特征空间的波束形成器;

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