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Multi-mode curve fitting method of instantaneous frequency in order tracking spectrum analysis

Research output: Contribution to journalArticlepeer-review

Abstract

After the analysis of many curve fitting methods to obtain phasing time scale by using instantaneous frequency and the advantage and deficiency when they were applied in different situations, such as with different instantaneous frequency, with different sample points and with or without sudden frequency change, a multi-mode curve fitting method of instantaneous frequency was proposed. Then its applicability to different situation was elaborated. Simulation results illustrate the correctness of the method.

Original languageEnglish
Pages (from-to)1165-1169
Number of pages5
JournalJilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and Technology Edition)
Volume38
Issue number5
StatePublished - Sep 2008

Keywords

  • Curve fitting
  • Information processing
  • Instantaneous frequency
  • Multi-mode
  • Order tracking spectrum

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