Autoregressive detection by generalized Burg algorithm

In the case of nonstationary signal fields, e.g., spatial array beamforming in the presence of correlated multipath, an autoregressive angle estimator should employ the generalized Burg algorithm (GBA) to account for the non-Toeplitz structure of the power cross-spectral density matrix. The detection performance of the GBA is analyzed and is shown to be comparable to the performance of the conventional AR detector in the case where no correlated interference is present.