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Stable 2nd order adaptive IIR filter structure for blind deconvolution

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4 Author(s)
Zhihui Zhu ; Coll. of Inf. Eng., Zhejiang Univ. of Technol., Hangzhou, China ; Dehui Yang ; Gang Li ; Chaogeng Huang

In this paper, blind system deconvolution using infinite impulse response (IIR) adaptive filters is studied. A new structure of input-balanced realizations is derived for 2nd order filter. It is showed that the adaptive IIR filter realized with such a structure is bounded-input bounded-output (BIBO) stable and suits for blind equalization based on Bussgang Criterion. Computer simulations are given and discussed to support our theoretical results. A series of the results show that the obtained filter structure is highly recommended for blind deconvolution due to its nice convergence and stability properties during adaptation.

Published in:

Image and Signal Processing (CISP), 2011 4th International Congress on  (Volume:5 )

Date of Conference:

15-17 Oct. 2011