Identification of Nonminimum Phase MA Systems Using Cepstral Operations on Slices of Higher Order Spectra
Çetin, A. E.
IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing
634 - 637
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In this paper, recursive and least squares methods for reconstructing the impulse response of a nonminimum phase, linear, time-invariant (NMP-LTI) MA system from its (k + l)st-order spectrum (k > 1) are presented. The methods are nonparametric. They are based on computing the complex cepstrum of the impulse response sequence 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. © 1992 IEEE