Array processing based on generalized directional signal model with angular spread

Array processing is to process the signals carried by the propagating waves received with an army of sensors.When signals propagate through the practical random time-variant medium,their wavefronts can show progressive losses of coherence with increasing spatial separation.These decorrelations of wavefronts result in an angular spread in the wavenumber spectrum centered about the true signal Direction-Of-Arrival (DOA).This paper puts the emphasis upon the array processing of the angular-spread signal which is called the generalized directional signal and aims to match this signal model in the energy sense.In this paper,we present an approach to the computer simulation of the so-called generalized directional signal model.Some results of computer simulation experiments and lake-tests in Xinganjiang river are also given.