Fractional Gabor spectral estimation for multi-component signals


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Onen E., Akan A.

IEEE 12th Signal Processing and Communications Applications Conference, Kusadasi, Türkiye, 28 - 30 Nisan 2004, ss.514-517 identifier identifier

  • Cilt numarası:
  • Doi Numarası: 10.1109/siu.2004.1338578
  • Basıldığı Şehir: Kusadasi
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.514-517

Özet

We present a high resolution time-frequency spectral analysis method for multi-component signals based on a discrete fractional Gabor expansion. The proposed discrete fractional Gabor expansion uses the closed form discrete fractional Fourier kernel and generate a parallelogram-shaped time-frequency plane tiling. Completeness and biorthogonality conditions of the new expansion are derived. We also present a search algorithm to obtain optimal analysis fraction orders for an arbitrary, multi-component signal to estimate a high resolution Gabor spectrum.