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针对在实际应用环境中偏差和扰动不可避免的情况,提出了基于波束空间的多重信号分类算法。通过引入波束空间预处理技术来对误差进行校正,经过理论和仿真分析验证,基于波束空间MUSIC的算法估计方差比经典MUSIC算法大,但是它的信噪比门限明显降低且计算量更小。
In view of the unavoidable deviation and disturbance in practical application environment, a multi-signal classification algorithm based on beam space is proposed. The error is corrected by introducing the beam space preprocessing technique. After theoretical and simulation analysis, the estimated variance of the algorithm based on the beam space MUSIC is larger than that of the classical MUSIC algorithm, but its signal-to-noise ratio threshold is significantly reduced and the computation is less.