Blind MIMO System Estimation Based on PARAFAC Decomposition of Higher Order Output Tensors

@article{Acar2006BlindMS,
  title={Blind MIMO System Estimation Based on PARAFAC Decomposition of Higher Order Output Tensors},
  author={Tolga Acar and Yuanning Yu and A. Petropulu},
  journal={IEEE Transactions on Signal Processing},
  year={2006},
  volume={54},
  pages={4156-4168}
}
We present a novel framework for the identification of a multiple-input multiple-output (MIMO) system driven by white, mutually independent unobservable inputs. Samples of the system frequency response are obtained based on parallel factorization (PARAFAC) of three- or four-way tensors constructed based on, respectively, third- or fourth-order cross spectra of the system outputs. The main difficulties in frequency-domain methods are frequency-dependent permutation and filtering ambiguities. We… CONTINUE READING

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