A detection statistic is described which exploits features in the three-dimensional response of the nonstationary bispectrum (third-order cumulant spectrum) for an assumed class of transient signals. The detection performance of the proposed detector is investigated for transients of this class in the presence of additive white stationary interference. The results are presented relative to the performance of a conventional power spectrum detector and a detection statistic based on the spectral correlation (second-order cumulant spectrum). The merits of the nonstationary bispectral detector relative to other transient detection approaches are also discussed.
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Barlett et al. (1996) studied this question.