Estimation of Number of Sources Impinging on a Uniformly Spaced Linear Array of Sensors

A novel estimation method of number of sources emitting waves on an uniformly spaced linear array of sensors is described. Similarly to well-known existing techniques, it is inspired by certain properties hold by the eigenvalues of the correlation matrix of the received signal. Numerical results show the feasibility of the here presented novel estimator in comparison with popular, Information Theoretic Criteria based estimators.