Wyniki wyszukiwania dla: CLGD

• Chirp-rate estimation of FM signals in the time-frequency domain

  Publikacja

  • K. Czarnecki

  - HYDROACOUSTICS - Rok 2014

  Novel dynamic representations of a complex signal in the time-frequency domain including: a channelized instantaneous complex frequency (CICF), a complex local group delay (CLGD) and a channelized instantaneous chirp-rate (CICR) are introduced. The proposed approach is based on the use of the gradient of the short-time Fourier transform complex phase. An interpretation of the newly-introduced distributions especially of the CICR...

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• A novel method of local chirp-rate estimation of LFM chirp signals in the time-frequency domain

  Publikacja

  • K. Czarnecki
  • M. Moszyński

  - Rok 2013

  In the paper, novel dynamic representations of a complex signal in the time-frequency domain are introduced. The proposed approach is based on using the gradient of the short-time Fourier transform complex phase. A channelized instantaneous complex frequency (CICF) and a complex local group delay (CLGD) are included in the presented signal representations. An application of the newly-introduced distributions is demonstrated by...

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