Interference Suppression in the Wigner Distribution Using Fractional Fourier Transformation and Signal Synthesis

  • Authors:
  • S. Qazi;A. Georgakis;L.K. Stergioulas;M. Shikh-Bahaei

  • Affiliations:
  • Dept. of Electr. Eng., NED Univ. of Eng. & Technol., Karachi;-;-;-

  • Venue:
  • IEEE Transactions on Signal Processing
  • Year:
  • 2007

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Abstract

A novel method for the suppression of cross terms in the time-frequency domain is introduced. First, interference is identified using a fractional Fourier transform-based technique. Then, auto-terms are detected, synthesized, and subtracted from the original signal. The process is repeated until all signal components are extracted. Finally, the Wigner distributions of pure auto-terms are superimposed to yield a high readability representation