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Array Signal Processing by DFT

This paper presented a new signal estimation algorithm, which can estimate the spatial azimuths θ i and the temporal frequencies f i of the sources by using DFT technique. The parameter pair (θ i,f i) of each source can be easily obtained and automatically combined from the DFT spectrum. The proposed approach is simple and direct and does not require any search procedure. The number of the sources being detected is much more than that of the sensors used. The simulation results were presented to demonstrate the performance of the proposed approach.