本文提出了一种基于四阶累积量的ESPRIT超分辨阵列测向算法，该算法适用于任意形状排列的空间阵列。
In this paper, a fourth-order cumulant-based ESPRIT DOA estimation method is presented for arbitrary array.
本文主要讨论了移动通信系统无三阶互调干扰的无线电信道排列法。
The paper is purposed at a discussion of third -order intermodulation-free radio channel assignment methods.
采用统计分析方法，通过平面气孔分布的二阶特性、气孔最邻近距离分布等分析了藕状多孔镁横截面上气孔的分布，结果表明气孔呈近程有序排列。
The spatial distribution of pores on cross section of lotus-type porous magnesium has been studied with second-order characteristics, nearest-neighbour distribution, etc.
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