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Please use this identifier to cite or link to this item: http://eprint.iitd.ac.in/handle/2074/1266

Title: Optimum broadband beamforming for coherent broadband signals and interferences
Authors: Agrawal, Monika
Prasad, Surendra
Keywords: Wideband optimum beamforming
Coherent sources
Uniform linear arrays
Correlated sources
Issue Date: 1999
Citation: Signal Processing, 77(1), 21-36
Abstract: The problem of optimum broadband beamforming using linear arrays is considered with a view to avoid signal cancellation that normally results when signal-correlated interferences are present in the environment. The optimum approaches proposed here are based on a harmonic model for signals and interferences on the one hand, and a convenient characterization of the signal-free interference subspace from the observed data, on the other. The characterization so obtained leads to a broadband generalization of results reported earlier in the literature for narrowband beamforming. The three beamformers proposed here completely eliminate signal cancellation without any adverse effects. Computer simulations are presented which validate the expected performance of the three beamformers proposed here in the presence of correlated and uncorrelated interferences.
URI: http://eprint.iitd.ac.in/dspace/handle/2074/1266
Appears in Collections:Electrical Engineering

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