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Volume 27 Issue 12
Dec.  2005
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Wang Li-jun, Xiong Gang, Zhao Hui-chang, Zhang Shu-ning. The Generalized Time-Frequency Distribution Based on Wavelet and Its Relation with Cohens Class[J]. Journal of Electronics & Information Technology, 2005, 27(12): 1927-1931.
Citation: Wang Li-jun, Xiong Gang, Zhao Hui-chang, Zhang Shu-ning. The Generalized Time-Frequency Distribution Based on Wavelet and Its Relation with Cohens Class[J]. Journal of Electronics & Information Technology, 2005, 27(12): 1927-1931.

The Generalized Time-Frequency Distribution Based on Wavelet and Its Relation with Cohens Class

  • Received Date: 2004-06-01
  • Rev Recd Date: 2004-09-09
  • Publish Date: 2005-12-19
  • STFT, WT, WVD and Cohens class are the useful tools of signal processing. This paper analyzes the bilinear TF based on WT, and the relation between the scalogram, VWS and Cohens class, Furthermore, the scalogram is classified into Cohens class, and then WT is generalized to TF domain(scalogram),ambiguity domain(wavelet AF) and frequency/frequency delay domain(WSCF). The WSCF characteristics of mono-frequency, dual-frequency, WGN, and fractal stochastic noise are analyzed. Finally, a dense algorithm of discrete WT is introduced to the computation of generalized TF distribution based on WT.
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