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特殊的阵列几何结构和灵活的阵列输出信号四阶累积量矩阵定义不仅使多个空间信号二维到达方向估计无需谱峰搜索且自动配对，而且使阵列孔径大大减小和适合任意高斯噪声环境．计算机模拟结果证实了方法的可行性．
Special Array Geometry and Flexible Array Output Signals The fourth-order cumulant matrix definition not only enables two-dimensional arrival direction estimation of multiple spatial signals without the need for peak search and automatic matching, but also greatly reduces the array aperture and suits any Gaussian noise environment. Computer simulation results confirm the feasibility of the method.