An ESPRIT-like method for quadratic phase coupling estimation

@article{Parthasarathy1995AnEM,
  title={An ESPRIT-like method for quadratic phase coupling estimation},
  author={Harish Parthasarathy and Surendra Prasad and Shiv Dutt Joshi},
  journal={IEEE Trans. Signal Processing},
  year={1995},
  volume={43},
  pages={2346-2360}
}
AbstructTwo algorithms are proposed for estimating the quadratically coupled frequency pairs (QC pairs) in a signal consisting of complex sinusoids in white noise. Three matrices are constructed from the complex third-order cumulants of the noisy signal, the second and third being time shifted versions of the first. The list of coupled frequencies is obtained from the rank reducing numbers of the matrix pencil formed from the first matrix and either of the latter two. The first algorithm then… CONTINUE READING
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