Blind IR Channel Equalization Based on Second-Order Statistics
Fangjiong Chen, Sam Kwong, Wenfei Nie, Gang Wei, Fei Ji · 2006
Direct blind equalization of Single-Input-Single-output (SISO) Infinite-Impulse-Response (IIR) channels is investigated by oversampling the channel output. Only second-order statistics is required and the channel order need not to be known. We first transform the oversampled channel into a special Single-Input- Multiple-Output (SIMO) model. Then a linear prediction approach is applied to partially estimate the model parameters. Based on the estimated parameters, Zero-forcing equalizers and MMSE equalizers are developed and their efficiency are evaluated by computer simulations.