Signal Processing 2019 DOI: 10.1016/j.sigpro.2019.07.007 View full text
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Christopher K. Kovach, Matthew A. Howard

Abstract: a b s t r a c tLike the ordinary power spectrum, higher-order spectra (HOS) describe signal properties that are invariant under translations in time. Unlike the power spectrum, HOS retain phase information from which details of the signal waveform can be recovered. Here we consider the problem of identifying multiple unknown transient waveforms which recur within an ensemble of records at mutually random delays. We develop a new technique for recovering filters from HOS whose performance in waveform detection…

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