阵列测向中相关多信源的信号个数判别

Detection of Number of Correlated Sources in Array Direction-finding

研究了一种采用阵列的前后向平均的信息论准则判别信号个数的方法，并且在不同的辐射源相关系数下对基本的信息论准则和前后向平均的信息论准则方法进行了仿真研究，结果表明，对MDL估计方法中的自由度进行修改可以得到更好的估计性能。

In this paper, the forward-backward smoothing information theoretic criterion based methods are studied for the detection of the number of sources in the array signal processing. Simulations are performed using signals with different coherent coefficients, which reveals that the detection performance can be improved by the modification of the degrees of freedom under the MDL principle.