吉林大学学报(工学版) ›› 2019, Vol. 49 ›› Issue (3): 986-993.doi: 10.13229/j.cnki.jdxbgxb20171207
摘要:
针对信号数大于物理阵元数情况下的信源数估计问题,提出一种基于互质阵列的信源数估计方法。首先利用互质阵列的特殊结构提高阵列自由度;然后估计阵列输出的向量化外积的概率密度函数的相关参数;最后利用得到的参数化概率模型的似然函数和最小描述长度(MDL)准则实现算法功能。仿真结果表明,本文方法在较低信噪比下对不相关的高斯信号的检测成功率仍可达到100%,检测性能优于其他算法。
中图分类号:
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