基于四阶累积量的空间信号2-D DOA分离估计
A NEW APPROACH FOR 2-D DIRECTION OF ARRIVAL ESTIMATION SEPARATELY BASED ON FOURTH ORDER CUMULANT
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摘要: 本文基于平行均匀线性阵列和四阶累积量提出了一种新的任意高斯噪声环境下的多个空间信号二维到达方向分离估计方法。通过巧妙定义阵列输出四阶累积量矩阵,该方法不需要谱峰搜索就可以估计信号二维到达方向。计算机模拟结果证实了方法的可行性。
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关键词:
- 阵列; 方位角; 仰角; 四阶累计量
Abstract: Based on a parallel uniform linear array and fourth order cumulant, a new approach for estimating multiple spatial narrow-band signal 2-D directions of arrival separately in the arbitrary Gaussian noise environment is presented. With flexible definition of fourth order cumulant of the array output signal, the spectral peak searching is not necessary for the new separable approach. Computer simulation confirms its availability. -
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