Phase Registration of a Single Quasi-Periodic Signal Using Self Dynamic Time Warping

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書誌事項

公開日
2011
権利情報
  • http://www.springer.com/tdm
DOI
  • 10.1007/978-3-642-19318-7_52
公開者
Springer Berlin Heidelberg

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説明

This paper proposes a method for phase registration of a single non-parametric quasi-periodic signal. After a short-term period has been detected for each sample by normalized autocorrelation, Self Dynamic Time Warping (Self DTW) between a quasi-periodic signal and that with multiple-period shifts is applied to obtain corresponding samples of the same phase. A phase sequence is finally estimated by the optimization framework including the data term derived from the correspondences, the regularization term derived from short-term periods, and a monotonic increasing constraint of the phase. Experiments on quasiperiodic signals from both simulated and real data show the effectiveness of the proposed method.

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