Multiple-input-multiple-output blind system identification based on cross-polyspectra

Authors:
B. Chen;A. P. Petropulu
Affiliations:
Dept. of Electr. & Comput. Eng., Drexel Univ., Philadelphia, PA, USA;-
Venue:
ICASSP '00 Proceedings of the Acoustics, Speech, and Signal Processing, 2000. on IEEE International Conference - Volume 01
Year:
2000

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Abstract

In this paper we propose a novel frequency domain approach for the n/spl times/n MIMO identification problem. The proposed method is a subspace approach that estimates the parameters of a FIR MIMO system, driven by temporally i.i.d. and spatially independent non-Gaussian processes, using cross poly-spectra of any order and cross-power spectra of the system output. Extensions to the case of non-white input signals are also discussed. Simulation results are provided to illustrate the performance of the new algorithm.