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Parafac based blind estimation of MIMO systems with possibly more inputs than outputs
Please use this identifier to cite or link to this item:
http://hdl.handle.net/1860/1683
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| Title: | Parafac based blind estimation of MIMO systems with possibly more inputs than outputs |
| Authors: | Yu, Yuanning
Petropulu, Athina P. |
| Keywords: | PARAFAC decomposition
High-order statistics
MIMO
Blind estimation |
| Issue Date: | 2006 |
| Publisher: | Institute of Electrical and Electronics Engineers (IEEE) |
| Citation: | Proceedings of the 2006 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2006, 3: pp. 133-136. |
| Abstract: | We consider the problem of frequency domain identification of
a convolutive multiple-input multiple-output (MIMO) system driven
by white, mutually independent unobservable inputs. In particular,
we improve upon a method recently proposed in [1] that uses
PARAFAC decomposition of a tensor that is formed based on thirdorder
statistics of the system output. The approach of [1] utilizes
only one slice of the output tensor to recover one row of the system
response matrix. We here propose an approach that fully exploits the
information in the output tensor. As a result, the proposed method
not only achieves lower error values but also becomes applicable to
MIMO systems with possibly more inputs than outputs. By combing
two output tensors, we can make the approach applicable to more
systems. We also extend the method to employ fourth-order statistics
of the system output. |
| URI: | http://dx.doi.org/10.1109/ICASSP.2006.1660608
http://hdl.handle.net/1860/1683 |
| Appears in Collections: | Faculty Research and Publications (ECE)
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