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A Robust Beamforming Algorithm Based on Modified Uncertainty Set
Author(s): 
Pages: 461-465,484
Year: Issue:  6
Journal: Radar Science and Technology

Keyword:  波束形成最小方差无失真响应稳健性不确定集;
Abstract: 基于不确定集约束的稳健MVDR波束形成算法在一定程度上依赖于期望信号导向矢量误差的先验知识,且当导向矢量失配较严重时干扰抑制性能也有所下降.为此,提出了一种基于投影变换的改进算法.该方法将约束方向矢量向信号干扰子空间投影,并作为新的约束方向矢量,从而等效于减小了期望信号导向矢量误差.这样,误差不确定参数只需设置为一较小的实数即可在任意导向矢量失配时获得最优的输出性能.计算机仿真结果证明了所提波束形...
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