Asymptotically optimal blind fractionally spaced channel estimation and performance analysis

Abstract
When the received data are fractionally sampled,the magnitude and phase of most linear time-invariant FIRcommunications channels can be estimated from second-orderoutput-only statistics. We present a general cyclic correlationmatching algorithm for known order FIR blind channel identificationthat has closed-form expressions for calculating theasymptotic variance of the channel estimates. We show that fora particular choice of weights, the weighted matching estimatoryields (at least for...

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