Multipoint interpolated DFT for sine waves in short records with DC components

@article{Wang2017MultipointID,
  title={Multipoint interpolated DFT for sine waves in short records with DC components},
  author={Yu Wang and Wei Wei and Ji Xiang},
  journal={Signal Processing},
  year={2017},
  volume={131},
  pages={161-170}
}
This paper provides an improved multipoint interpolated digital Fourier transform (DFT) method for the estimation of sine waves in short records, in the presence of DC components. It is based on the procedure of windowing, fast Fourier transform (FFT), and spectrum interpolation. The proposed four-point interpolation simultaneously takes into consideration the fundamental component's positive and negative frequency parts and the DC component. It is composed of two steps, the first of which… CONTINUE READING

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