Abstract: 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.