Fast anytime fuzzy frequency estimation of multisine signals

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The determination of the frequencies of a multisine signal can be very important at diferent signal processing tasks, like vibration measurements and active noise control related to rotating machinery and calibration equipment. Adaptive Fourier Analyzers have been developedfor measuring periodic signals with unknown or changing fundamental frequency. Higher frequency applications have limitations since the computational complexity of these analyzers are relatively high as the number of harmonic components to be measured (or suppressed) is usually above 50. Recently, a fast-filter bank structure has been proposed for Adaptive Fourier Analysis based on the combination of the concept of transform domain signal processing and the adaptation of a simple linear combiner. It results in the reduction of the above computational complexity, however for the correct use we have to have pre-estimation about the range of the fundamental frequency to be able to set the applied single-input multiple-output filter-banks, which in many cases causes significant and possibly non-tolerable delay in the operation. In this paper, a new fast fuzzy logic supported anytime frequency range estimation procedure is proposed which makes possible to execute the frequency estimation after one quarter of the period of the unknown signal, i.e. the adaptation and Fourier Analysis can be performed without any delay.

Original languageEnglish
Title of host publication2008 IEEE International Instrumentation and Measurement Technology Conference Proceedings, I2MTC
Pages819-824
Number of pages6
DOIs
Publication statusPublished - Sep 15 2008
Event2008 IEEE International Instrumentation and Measurement Technology Conference, I2MTC - Victoria, BC, Canada
Duration: May 12 2008May 15 2008

Publication series

NameConference Record - IEEE Instrumentation and Measurement Technology Conference
ISSN (Print)1091-5281

Other

Other2008 IEEE International Instrumentation and Measurement Technology Conference, I2MTC
CountryCanada
CityVictoria, BC
Period5/12/085/15/08

Keywords

  • Adaptive Fourier analysis
  • Anytime systems
  • DFT
  • FFT
  • Frequency estimation
  • Fuzzy sets
  • Multisine signal
  • Transformed domain digital signal processing

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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  • Cite this

    Várkonyi-Kóczy, A. R. (2008). Fast anytime fuzzy frequency estimation of multisine signals. In 2008 IEEE International Instrumentation and Measurement Technology Conference Proceedings, I2MTC (pp. 819-824). [4547150] (Conference Record - IEEE Instrumentation and Measurement Technology Conference). https://doi.org/10.1109/IMTC.2008.4547150