【论文 Frost1972】An Algorithm for Linearly Constrained Adaptive Array Processing
经典的Frost beamformer，也叫线性约束最小方差（LCMV）滤波 概括 如上图所示，假设目标信号从线性阵列的宽边方向传入，noise以及inference从其它方向传入，取最近的J个数据，在理想远场模型下，，每个时刻各个阵元接收到的目标信号相同，噪声在每个阵元的信号不同（非宽边注视方向输入），将每个时刻的信号加权求和，得到上图中下部分的等效模型，即最终输出为一个加权求和得到的FIR滤波
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相关文章
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