Hilbert transform of a constant envelope signal using the time-warping technique

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A method of performing the Hilbert transform of a constant envelope broadband signal is presented. The method is based on a time-warping technique which transforms the constant envelope signal into a harmonic one. The time-warping can be performed if the instantaneous phase (frequency) of the signal is known. Obtained in such a way the harmonic signal, given in the transformed time domain, has unit frequency. The Hilbert transform is performed in the transformed time domain, simply by delaying the harmonic signal by a quarter of its period.

Original languageEnglish
Pages (from-to)97-101
Number of pages5
JournalSignal Processing
Issue number1
StatePublished - 1 Jan 1993


  • Hilbert transform
  • time-warping

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Software
  • Signal Processing
  • Computer Vision and Pattern Recognition
  • Electrical and Electronic Engineering

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