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In this paper, A set of spatio-temporal covariance matrices which possess diagonal structure are introduced. Then we use a high quality signal subspace as a dimension-reduction matrix dealing with the set of correlation matrices. A novel cost function was proposed based on nonlinear least squares. Afterwards, a new approach termed Tri-iterative algorithm (TIA) was derived for solving the cost function...
In this paper, an efficient algorithm is developed for blind separation of multiple independent sources from observed array output signals with noises. First, a novel tri-quadratic cost function is introduced for extracting statistically independent sources from array signals. Then an efficient method is established for solving this cost function. The developed blind source separation algorithm involves...
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