Journal article
Parafac based blind estimation of MIMO systems with possibly more inputs than outputs
Drexel University. College of Engineering. Department of Electrical and Computer Engineering. Faculty Publications and Research.
10 Jul 2007
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.
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Details
- Title
- Parafac based blind estimation of MIMO systems with possibly more inputs than outputs
- Creators
- Yuanning Yu (Author) - Drexel University (1970-)Athina P. Petropulu (Author) - Drexel University (1970-)
- Publication Details
- Drexel University. College of Engineering. Department of Electrical and Computer Engineering. Faculty Publications and Research.
- Publisher
- The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Drexel University (1970-); College of Engineering; Electrical and Computer Engineering
- Identifiers
- 991014632537004721