Harmonic Analysis and Simulation Study Using Triple-spectrum-line interpolation FFT Algorithm

DOI

10.2991/meita-15.2015.133How to use a DOI?

Keywords

Fast Fourier Transform, Spectral Leakage, Harmonic Analysis, Triple-spectrum-line Interpolation, Harmonic Frequency Point

Abstract

There is hard to obtain the harmonic parameters exactly for the fast Fourier transform in situation of non-synchronous sampling. The cosine window and triple-spectrum-line interpolation FFT algorithm is presented to reduce spectral leakage and improve the accuracy of harmonic analysis. The windowed FFT transform is applied to the sampling signal using a good sidelobe characteristic window and discrete spectrum lines are obtained. The weighted arithmetic is operated by using three spectrum lines near the harmonic frequency point and the applicable rectifications of triple-spectrum-line FFT are deduced. Simulation results show that the algorithm has a higher accuracy of harmonic analysis compared with the cosine windowed double interpolation FFT in non-synchronized sampling.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Xiao-wan Song
AU  - De-min Li
AU  - Zhen-hua Li
AU  - Wen-zhang Guo
PY  - 2015/08
DA  - 2015/08
TI  - Harmonic Analysis and Simulation Study Using Triple-spectrum-line interpolation FFT Algorithm
BT  - Proceedings of the 2015 International Conference on Materials Engineering and Information Technology Applications
PB  - Atlantis Press
SP  - 731
EP  - 738
SN  - 2352-5401
UR  - https://doi.org/10.2991/meita-15.2015.133
DO  - 10.2991/meita-15.2015.133
ID  - Song2015/08
ER  -