Natural gradient works efficiently in learning
Neural Computation
Adaptive Blind Signal and Image Processing: Learning Algorithms and Applications
Adaptive Blind Signal and Image Processing: Learning Algorithms and Applications
IEEE Transactions on Signal Processing
Multichannel blind deconvolution of nonminimum-phase systems using filter decomposition
IEEE Transactions on Signal Processing
Two-Stage blind deconvolution for V-BLAST OFDM system
ISNN'06 Proceedings of the Third international conference on Advances in Neural Networks - Volume Part I
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In our previous work [11], we introduced a filter decomposition method for blind deconvolution in non-minimum phase system. To simplify the deconvolution procedure, we further study the demixing filter and modify the cascade structure of demixing filter. In this paper, we introduce a novel two-stage algorithm for blind deconvolution. In first stage, we present a permutable cascade structure which constructed by a causal filter and an anti-causal scalar filter. Then, we develop SOS-based algorithm for causal filter and derive a natural gradient algorithm for anti-causal scalar filter. At second stage, we apply an instantaneous ICA algorithm to eliminate the residual instantaneous mixtures. Computer simulations show the validity and effectiveness of this approach.