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- W2009234083 abstract "Abstract The forward-backward processing and narrow-band adaptive beamforming was investigated recently. It was shown that the narrow-band forward-backward beamforming converges faster and requires less computations than the forward-only beamforming. In this paper, we study the wideband forward-backward processings of the Frost beamformer and its corresponding GSC, which converge faster than the forward-only ones. We also describe methods to reduce the computations of the wideband forward-backward processing. For the Frost beamformer, we observe that the constraint matrix possesses the property termed general centrosymmetry. With that property, the forward-backward weight vector of the Frost beamformer can be transformed by a unitary matrix to achieve computation savings. As to the GSC, we show that a signal blocking matrix with general centrosymmetry may be used for reducing the computations required for calculating the weight vector. Besides, we describe a method to generate the general-centrosymmetric signal blocking matrix. Computer simulation results are included to compare the performances of the forward-backward and the forward-only beamformers." @default.
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- W2009234083 date "1995-07-01" @default.
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- W2009234083 title "Wideband forward-backward beamforming and its efficient computation methods" @default.
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- W2009234083 doi "https://doi.org/10.1016/0165-1684(95)00030-h" @default.
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