A SECOND‐ORDER SYNCHROSQUEEZING S‐TRANSFORM AND ITS APPLICATION IN SEISMIC SPECTRAL DECOMPOSITION

@article{Zhonglai2017ASS,
  title={A SECOND‐ORDER SYNCHROSQUEEZING S‐TRANSFORM AND ITS APPLICATION IN SEISMIC SPECTRAL DECOMPOSITION},
  author={Huang Zhonglai and Zhang Jian-zhong and Zou Zhi-Hui},
  journal={Chinese Journal of Geophysics},
  year={2017},
  volume={60},
  pages={627-639}
}
The Synchrosqueezing S-transform (SSST) is a novel approach for time-frequency (T-F) representation of non-stationary signals. By “squeezing” T-F spectrum of the S-transform (ST) of a signal, the SSST can obtain a high-resolution T-F spectrum. However, when the phase of a signal varies non-linearly with time, the instantaneous frequency (IF) of the signal calculated by the SSST would be inaccurate, causing reduction of the resolution of the T-F spectrum. In order to improve its performance in… 

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