Blind Identification and Signal Separation of Two-InputTwo-Output FIR Systems

Authors:
Jun Wang;Zhenya He
Affiliations:
Department of Radio Engineering, Southeast University, Nanjing 210096, P.R.China;Department of Radio Engineering, Southeast University, Nanjing 210096, P.R.China
Venue:
Multidimensional Systems and Signal Processing
Year:
1998

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Abstract

This paper presents a new kind of higher order statistics(HOS) based approaches for blind identification and signal separationof two-input two-output FIR systems. The approaches consist ofeigenanalysis of higher order spectrum matrices of measurementsat different frequency slices and then exploiting the structuralinformation of the coupling system to eliminate the identificationindeterminacy. It is proved that under some weak restrictions,our approaches can guarantee the uniqueness of solution and leadto the desired solution, which is quite different from otherexisting methods.