DocumentCode :
3156097
Title :
A proposal of blind deconvolution using orthogonal projection and kurtosis
Author :
Matsumoto, Hiroki ; Tanno, Masayuki ; Furukawa, Toshihiro
Author_Institution :
Matsumoto Lab., Maebashi Inst. of Technol., Maebashi, Japan
fYear :
2009
fDate :
7-9 Jan. 2009
Firstpage :
619
Lastpage :
622
Abstract :
In a transmission system, the conventional adaptive blind equalizers are implemented a direct estimation for the parameters of the equalizers. But both convergence rate of these algorithms and reliability of the regenerated signals degrade down. In this paper, we propose a new equalization system and a new adaptive algorithm using the blind channel estimation for improving these two faults above. In the proposed method, first, we provide a pseudo-channel and input signals to the pseudo-channel in received part, and characteristics of the channel are adaptively estimated using simplified kurtosis, output signals of the channel and the pseudo-channel. Secondly, we design the equalizer using an adaptive orthogonal projection algorithm for the estimated channel impulse response matrix. We confirm that convergence rate of the proposed algorithm and reliability of the regenerated signals are better than those of the conventional adaptive blind algorithm by numerical example.
Keywords :
blind equalisers; channel estimation; deconvolution; transient response; adaptive algorithm; adaptive blind equalizers; adaptive orthogonal projection; blind channel estimation; blind deconvolution; channel impulse response matrix; convergence rate; equalization system; input signals; pseudochannel signals; regenerated signals; reliability; simplified kurtosis; transmission system; Adaptive algorithm; Adaptive equalizers; Adaptive systems; Algorithm design and analysis; Blind equalizers; Convergence; Deconvolution; Degradation; Parameter estimation; Proposals;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Intelligent Signal Processing and Communication Systems, 2009. ISPACS 2009. International Symposium on
Conference_Location :
Kanazawa
Print_ISBN :
978-1-4244-5015-2
Electronic_ISBN :
978-1-4244-5016-9
Type :
conf
DOI :
10.1109/ISPACS.2009.5383764
Filename :
5383764
Link To Document :
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