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FIR system identification using fourth-order cumulants with application to channel equalization

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2 Author(s)
Porat, B. ; Dept. of Electr. Eng., Technion-Israel Inst. of Technol., Haifa, Israel ; Friedlander, Benjamin

Three algorithms for finite impulse response (FIR) system identification from output measurements, using fourth-order cumulants, are described. The impulse response is assumed to be complex, and the input is a complex independent and identically distributed (i.i.d) non-Gaussian sequence. The algorithms are based on a certain low-rank matrix constructed from the output cumulants. An application of the algorithms to blind equalization of digital communication channels is discussed and illustrated by some examples

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Automatic Control, IEEE Transactions on  (Volume:38 ,  Issue: 9 )