An efficiency analysis of determining a signal source direction in a few-element antenna array under an influence of spatially correlated interference

The problem of determining the signal source direction under the influence of spatially correlated interference is being solved. Algorithms of optimal angular coordinate estimation for deterministic, quasideterministic, Gaussian signal are considered. The error in determining the direction of the signal source is calculated based on the Cramér-Rao boundaries. The influence of the spatial structure of the antenna array to the error in determining the direction of the signal source is being researched.