Blind equalization algorithm based on second-order statistics
Zhang Liyi · Jisuanji gongcheng yu sheji · 2008
A new blind equalization algorithm based on the second-order cycle statistics is presented.The equalization of the single input multiple output system which can be obtained by fractionally spaced sampling.Due to oversampling,the equivalent channel matrix pos-sesses a particular structure which enables us to estimate the channel based only on the information contained in the covariance matrix at zero delay.According to different delay the covariance matrix to seek delay equalizer different matrix,then a minimum mean square error MMSE criterion is used to optimize the best equalizer delay covariance matrix.Simulation examples are provided to demonstrate the performance advantage of the proposed algorithm.