Fast-varying AM-FM components extraction based on an adaptive STFT

@article{Xie2012FastvaryingAC,
  title={Fast-varying AM-FM components extraction based on an adaptive STFT},
  author={Hang Xie and Jing Lin and Yaguo Lei and Yuhe Liao},
  journal={Digital Signal Processing},
  year={2012},
  volume={22},
  pages={664-670}
}
A new method is proposed in this article for fast-varying AM-FM components extraction. There are two prominent characteristics in this method. Firstly, a new evaluation method for the instantaneous bandwidth is established, which is based on the instantaneous slope of the time-frequency curve with respect to the AM-FM component. Secondly, a new adaptive STFT algorithm is established, which adjusts the window width by adapting to the instantaneous bandwidth at each frequency position. In order… CONTINUE READING

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