Signals time-frequency analysis method with specific frequency polar images

  • Authors:

  • Zhenhua Sun;Xuemin Tian

  • Affiliations:

  • College of Information and Control Engineering, China University of Petroleum (East China), Dongying, China;College of Information and Control Engineering, China University of Petroleum (East China), Dongying, China

  • Venue:
  • IMCAS'10 Proceedings of the 9th WSEAS international conference on Instrumentation, measurement, circuits and systems
  • Year:
  • 2010

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Abstract

This paper reviewed the popular time-frequency analysis methods of signals. Due to the weakness in phase analyzing ability of the general time-frequency analysis methods, a novel method with specific frequency polar images was proposed. And the fundamental concept of it was defined. This method acquires the time-frequency distribution and phase information of signals by projecting them to a specific frequency polar. And through the dynamic tracks in the polar cycle, the time-frequency information was showed clearly. Finally, the characteristics of this method were concluded. And the direction of future works was assigned.