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Bi-conjugate gradient based computation of weight vector in space-time adaptive processing

空时自适应信号处理中基于双共轭梯度法的权重向量计算

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创新点

在空时自适应信号处理中, 权重向量是通过杂波协方差矩阵的逆和一个导向向量的乘积得到的。为了减少计算权重向量的复杂度, 很多研究都是为了降低计算杂波协方差矩阵逆的计算量。本文将计算该权重向量的计算归结为求解一个线性方程组解, 然后用双共轭梯度法求解该权重向量。分析得到该方法的计算复杂度比直接求逆的方法降低了一个级别。

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Correspondence to Ran Tao.

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Bai, G., Tao, R. & Wang, Y. Bi-conjugate gradient based computation of weight vector in space-time adaptive processing. Sci. China Inf. Sci. 59, 129301 (2016). https://doi.org/10.1007/s11432-016-5591-z

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关键词

  • 空时自适应信号处理
  • 杂波协方差矩阵
  • 杂波抑制
  • 权重向量
  • 双共轭梯度法