Title :
Stable 2nd order adaptive IIR filter structure for blind deconvolution
Author :
Zhu, Zhihui ; Yang, Dehui ; Li, Gang ; Huang, Chaogeng
Author_Institution :
Coll. of Inf. Eng., Zhejiang Univ. of Technol., Hangzhou, China
Abstract :
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.
Keywords :
IIR filters; deconvolution; 2nd order filter; Bussgang Criterion; adaptive IIR filter structure; blind equalization; blind system deconvolution; bounded-input bounded-output; computer simulations; infinite impulse response adaptive filters; Adaptation models; Blind equalizers; Convolution; Deconvolution; Finite impulse response filter; Stability analysis; Vectors;
Conference_Titel :
Image and Signal Processing (CISP), 2011 4th International Congress on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-9304-3
DOI :
10.1109/CISP.2011.6100697
