Wavelet Transform Method of Waveform Estimation for Hilbert Transform of Fractional Stochastic Signals with Noise

نویسندگان

  • Wei Su
  • Hong Ma
  • Yuan Yan Tang
  • Michio Umeda
چکیده

In this paper, those splendid characters of the Hilbert transform let the processes that taking wavelet transform after taking Hilbert transform for the statistic self-similarity processes FBM [ ) (t BH ] become another processes, that firstly taking Hilbert transform for the wavelet function ) (t φ and forming a new wavelet function ) (t ψ , secondly taking the wavelet transform for ) (t BH . Then, we use the optimum threshold to estimate the ) ( ˆ t BH embedded in additive white noise. Typical computer simulation results to demonstrate the viability and the effectiveness of the Hilbert transform in the signal’s estimation of the statistic self-similarity process.

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تاریخ انتشار 2001