ROBUST SUPER-EXPONENTIAL METHODS FOR DEFLATIONARY BLIND EQUALIZATION OF STATIC SYSTEMS (WedAmPO3)

Author(s) : Mitsuru Kawamoto (Shimane University, RIKEN, Japan) Kiyotaka Kohno (Shimane University, Japan) Yujiro Inouye (Shimane University, Japan)

Abstract : The so called "super-exponential" methods (SEM's) are attractive methods for solving blind signal processing problems. The conventional SEM's, however, have such a drawback that they are very affected by Gaussian noise. To overcome this drawback, we propose a new SEM. While the conventional SEM's use the second- and higher-order cumulants of observations, the proposed SEM uses only the higher-order cumulants of observations. Because higher-order cumulants are not affected by Gaussian noise, the proposed SEM is robust to Gaussian noise, which is referred to as a robust super-exponential method (RSEM). To show the validity of the proposed RSEM, some simulation results are presented.

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