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Identification of nonminimum phase MA systems using cepstral operations on slices of higher order spectra

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3 Author(s)
Alshebeili, S.A. ; Dept. of Electr. Eng., King Saud Univ., Riyadh, Saudi Arabia ; Cetin, A.E. ; Venetsanopoulos, A.N.

Recursive and least-squares methods for reconstructing the impulse response of a nonminimum phase, linear time-invariant (NMP-LTI) MA system from its (k+1)st-order spectrum (k>1) are presented. The methods are nonparametric. They are based on computing the complex cepstrum of the impulse response sequences of the unknown system from the diagonal slice of the (k+1)st-order spectrum. The computational complexity of the system identification problem can be considerably reduced by using slices of higher-order spectra

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Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on  (Volume:39 ,  Issue: 9 )