Blind identification of ARMA channels with periodically modulated inputs

Georgios B. Giannakis, Erchin Serpedin

Research output: Contribution to journalArticlepeer-review


Recent results have pointed out the importance of inducing cyclostationarity at the transmitter for blind identification of FIR communication channels. The present paper considers the blind identification problem of an ARMA(p, q) channel by exploiting the cyclostationarity induced at the transmitter through periodic encoding of the input. It is shown that causal and stable ARMA(p,q) channels can be uniquely identified from the output second-order cyclic statistics, irrespective of the location of channel poles and zeros and color of additive stationary noise, provided that the cyclostationary input has at least q + 1 nonzero cycles.

Original languageEnglish (US)
Pages (from-to)3088-3092
Number of pages5
JournalIEEE Transactions on Signal Processing
Issue number11
StatePublished - Dec 1 1998

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