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Novel Interpolation Method of Multi-DFT-Bins for Frequency Estimation of Signal with Parameter Step Change
Abstract
The IpDFT(Interpolation Discrete Fourier Trans-form) method is one of the most commonly used non-parametric methods. However, when a parameter (frequency, amplitude or phase) step changes in the DFT period, the DFT coefficients will be distorted seriously, resulting in the large estimation error of the IpDFT method. Hence, it is a key challenge to find an IpDFT method, which not only can eliminate the effect of the step-changed symbol, but also can sufficiently eliminate the fence effect and the spectrum leakage. In this paper, an IpDFT based method is proposed to estimate the frequency of the single tone signal with the step-changed parameters in the sampling signal sequence. The relationship between the DFT bins and the step changed parameters is given by several linear equations. At most six different DFT bins are used to eliminate the effect of symbol.
Citations
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Authors (5)
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Kai Wang
-
Shan Liu
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Lanlan Wang
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He Wen
Cite as
Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1109/TIM.2021.3139652
- License
- Copyright (2021 IEEE)
Keywords
Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
no. 71,
ISSN: 0018-9456 - Language:
- English
- Publication year:
- 2022
- Bibliographic description:
- Wang K., Liu S., Wang L., Smulko J., Wen H.: Novel Interpolation Method of Multi-DFT-Bins for Frequency Estimation of Signal with Parameter Step Change// IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT -Vol. 71, (2022),
- DOI:
- Digital Object Identifier (open in new tab) 10.1109/tim.2021.3139652
- Sources of funding:
-
- Free publication
- Verified by:
- Gdańsk University of Technology
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