Subspaces of FMmlet transform

  • Zou Hongxing 
  • Dai Qionghai 
  • Zhao Ke 
  • Chen Guiming 
  • Li Yanda 


The subspaces of FMmlet transform are investigated. It is shown that some of the existing transforms like the Fourier transform, short-time Fourier transform, Gabor transform, wavelet transform, chirplet transform, the mean of signal, and the FM−1let transform, and the butterfly subspace are all special cases of FMmlet transform. Therefore the FMmlet transform is more flexible for delineating both the linear and nonlinear time-varying structures of a signal.


FMmlet transform chirplet transform subspace parametric time-frequency signal representation 


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Copyright information

© Science in China Press 2002

Authors and Affiliations

  • Zou Hongxing 
    • 1
  • Dai Qionghai 
    • 1
  • Zhao Ke 
    • 2
  • Chen Guiming 
    • 2
  • Li Yanda 
    • 1
  1. 1.Department of AutomationTsinghua UniversityBeijingChina
  2. 2.The Second Artillery Institute of EngineeringXi’anChina

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