Journal of Jishou University(Natural Sciences Edition) ›› 2023, Vol. 44 ›› Issue (6): 20-27.DOI: 10.13438/j.cnki.jdzk.2023.06.004

• Communication Technology • Previous Articles     Next Articles

Harmonic and Inter-Harmonic Parameter Estimation Algorithm Based on MSLDSMC Window

CHEN Qianming,ZHANG Zhiwei,LI Minghao,WANG Xuming,LEI Kejun   

  1. (School of Communication and Electronic Engineering,Jishou University,Jishou 416000,Hunan China)
  • Online:2023-11-25 Published:2023-12-19

Abstract: The fast Fourier transform (FFT) method may encounter spectral leakage and picket fence effect in harmonic detection,resulting in low accuracy in detecting harmonic and inter-harmonic parameters.To improve the detection accuracy,based on the maximum side lobe decay window (MSLD) with excellent sidelobe characteristics,we have constructe an MSLD self-multiplication-convolution window (MSLDSMC) by multiplication and convolution operations.On this basis we propos a high-precision estimation algorithm for harmonic and inter-harmonic parameters of three spectral line interpolation.Simulation experiments conducted in different complex scenarios verify the accuracy of harmonic and inter-harmonic parameter estimation algorithms based on MSLDSMC window three spectral line interpolation.

Key words: harmonic analysis, maximum side lobe decay self-multiplication-convolution window, three spectral line interpolation, polynomial fit, inter-harmonic

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