摘要
本文针对有色高斯噪声背景中空域信号参数估计问题，提出了一种基于四阶累量的二维空间谱估计的新方法。在这种方法中，利用两个具有位移特性的二维传感器子阵列的四阶累量信息构成一种新的矩阵—四阶累量混合波达方向矩阵。对四阶累量混合波达方向矩阵进行特征分解，可实现有色高斯噪声背景中空域信号二维空间谱估计。
A new method based on fourth order cumulants for two dimensional spatial spectra estimation is presented in this paper in order to estimate parameters of spatial sources in colour Guassian noises.In the method,a new matrix which is called cumulants based mixed DOA matrix is formed with the outputs of two translated sensor subarrays.We can estimate two dimensional spatial spectra of sources in colour Guassian noises by eigen decomposing the matrix.
出处
《通信学报》
EI
CSCD
北大核心
1998年第3期51-54,共4页
Journal on Communications
关键词
阵列信号处理
空间谱估计
四阶累量
array signal processing,spatial spectrum estimation,fourth order cumulants
