The differences on resolution capability and the performance of estimation between beam - space processing and element - space processing are analyzed . transforming matrices are designed for the consideration of depressing the resolution threshold and estimation variance 分析比较了波束域处理与阵元域处理的分辨能力以及估计性能，并从降低分辨门限和估计方差角度考虑，给出了转换矩阵的构造方法。
