A proposal of a new blind equalizer using output signals of decision device

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Some of authors proposed the blind equalization algorithm for communication systems. In the algorithm, we realize higher reliability of the recovered signals and faster convergence rate of the algorithm, because the parameter included in Sato cost function is adjusted by using both outputs of the equalizer and the decision device. However, we cannot apply this method to communication systems except binary code systems. Then, in this paper, we extend the previously proposed method to the method applied for multilevel code systems. And we confirm the performance evaluation of the extended method by the computer simulation.

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