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Subspace methods for blind identification of multichannel FIR filters using space-time contraction of cumulants

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1 Author(s)
Martone, M. ; Telecommun. Group, Watkins-Johnson Co., Gaithersburg, MD, USA

We show that the popular subspace method for identification of multichannel systems can be implemented using particular contractions of higher-order cumulants, in the case of independent, identically distributed (i.i.d.) inputs. The algorithm appears to outperform the traditional correlation-based subspace algorithm in low signal-to-noise-ratio (SNR) and/or correlated noise.

Published in:

Signal Processing Letters, IEEE  (Volume:5 ,  Issue: 7 )