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2015 | 1 | 1 |
Article title

A new zoom algorithm and its use in frequency estimation

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Languages of publication
EN
Abstracts
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.
Publisher
Year
Volume
1
Issue
1
Physical description
Dates
accepted
16 - 9 - 2015
online
6 - 11 - 2015
received
6 - 8 - 2015
References
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  • [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)
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  • [5] Murugan K., Electrocardiogram signal analysis using zoom FFT.In: 2012 ISSNIP Biosignals and Biorobotics Conference, pp. 1–4.Manaus, Brazil (2012)
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  • [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)
Document Type
Publication order reference
YADDA identifier
bwmeta1.element.-psjd-doi-10_1515_wwfaa-2015-0002
Identifiers
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