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Tytuł artykułu

A new zoom algorithm and its use in frequency estimation

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
This paper presents a novel zoom transform algorithm for a more reliable frequency estimation. In fact, in many signal processing problems exact determination of the frequency of a signal is of paramount importance. Some techniques derived from the Fast Fourier Transform (FFT), just pad the signal with enough zeros in order to better sample its Discrete-Time Fourier Transform. The proposed algorithm is based on the FFT and avoids the problems observed in the standard heuristic approaches. The analytic formulation of the novel approach is presented and illustrated by means of simulations over short-time based signals. The presented examples demonstrate that the method gives rise to precise and deterministic results.
Słowa kluczowe
Wydawca

Rocznik
Tom
1
Numer
1
Opis fizyczny
Daty
otrzymano
2015-08-06
zaakceptowano
2015-09-16
online
2015-11-06
Twórcy
  • CTS-UNINOVA, Department of Electrical
    Engineering, Faculty of Sciences and Technology, Universidade
    Nova de Lisboa, Portugal
  • Academia Militar and INESC,
    R. Alves Redol, 9, 2º, 1000-029, Lisbon, Portugal
  • Institute of Engineering, Polytechnic of
    Porto, Dept. Electrical Engineering, Rua Dr. António Bernardino
    de Almeida, 431, 4249-015 Porto, Portugal
Bibliografia
  • [1] Burrus C.S., McClellan J.H., Oppenheim A.V., Parks T.W., SchaferR., Schuessler H., Computer-Based Exercices for Signal Processingusing MatLab, Prentice-Hall, USA (1994)
  • [2] ChenW.J., Spectrummagnifier: Zooming into local details in thefrequency domain. In: 2013 IEEE China Summit & InternationalConference on Signal and Information Processing, pp. 82–85,Beijing, China (2013)
  • [3] Franz S., Mitra S.K., Doblinger G., Frequency estimation usingwarped discrete Fourier transform, Signal Processing 83(8),1661–1671 (2003)[Crossref]
  • [4] Hossen A., Heute U., A novel simple adaptive spectral analysiszoom for narrow-band signals. In: 11th European Signal ProcessingConference, pp. 1–4, Toulouse, France (2002)
  • [5] Murugan K., Electrocardiogram signal analysis using zoom FFT.In: 2012 ISSNIP Biosignals and Biorobotics Conference, pp. 1–4.Manaus, Brazil (2012)
  • [6] Ortigueira M.D.,Matos C.J.C., Piedade M.S., Fractional discretetimesignal processing: Scale conversion and linear prediction,Nonlinear Dynamics 29(1–4), 173–190 (2002)[Crossref]
  • [7] Randall R.B., Frequency Analysis, Brüell and Kjær, Denmark(1987)
  • [8] wei Wang L., liu Zhao J., ying Wang Z., na Pang L., Applicationof zoom FFT technique to detecting EM signal of SLF/ELF, ActaSeismologica Sinica 20(1), 63–70 (2007)
  • [9] Yanhua J., Gun L., Kaiyu Q., Study of a novel zoom spectrumanalysis approach for wireless communication analyzer. In: InternationalConference on Communications and Mobile Computing,vol. 1, pp. 367–371. Yunnan, China (2009)
  • [10] Zolnai Z., Juranić N., Markley J.L., Macura S., Zooming, a practicalstrategy for improving the quality of multidimensional NMRspectra, Journal of Magnetic Resonance, Series A 119(1), 5364(1996)
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_1515_wwfaa-2015-0002
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