时间取样相关且源内角度相关的分布源模型

A Temporal-angular Correlated Distributed Source Model

用VonMises角度函数和 1阶AR模型刻画分布源源内角度相关和时间取样相关 ,将时间取样独立且源内角度独立的分布源模型推广到时间取样相关且源内角度相关的分布源模型。并用阵列相关阵特征值法分析了该模型的有效性。此外 ,文中给出了该模型参数估计的克劳限。

This paper presents a novel temporal-angular correlated model for a distributed source. The Von Mises angular function is used to quantitatively describe the degree of angular correlation and a 1st-order AR model to the temporal correlation. This model's validity is analyzed through the eigenvalues of the array covariance. Simulations of the model's Cramer-Rao Bound (CRB) are also presented. The model's efficiency is illustrated by theoretical analysis and simulations.