NOISE SOURCE BEARING ESTIMATION WITH VECTOR-SCALAR ARRAYS
In numerical simulations of lowintensity wideband noise signal propagation, the sound source bearing estimation problem with vector-scalar circular and linear horizontal arrays is considered in the presence of background isotropic noise field. The applicability of different beamforming methods, including ones based on signal accumulation at interference maxima when taking into account the effective phase speed, is examined. It is shown that the different methods produce different contrast of array response. However, the minimal source intensity that is still possible to detect doesn’t depend on the bearing estimation method.