Loading [a11y]/accessibility-menu.js
Novel Two-Point Interpolation DFT Method for Frequency Estimation of Sine-Wave Within a Short Time Window | IEEE Conference Publication | IEEE Xplore

Novel Two-Point Interpolation DFT Method for Frequency Estimation of Sine-Wave Within a Short Time Window


Abstract:

The superiority of interpolated discrete Fourier transform (IpDFT) has been proven in frequency estimation. However, the effects of negative frequency and strong noise re...Show More

Abstract:

The superiority of interpolated discrete Fourier transform (IpDFT) has been proven in frequency estimation. However, the effects of negative frequency and strong noise result in poor behavior when the length of the observation window is short. To this end, this paper proposes a novel twopoint IpDFT method for frequency estimation based on rectangular window and zero padding technique. The proposed method exploits the conjugate symmetry and parity of the unbiased signal model. This is done to eliminate both short and long-range spectral leakage caused by positive and negative frequencies. Besides, the impact of white noise can be maximally resisted by using the rectangular window and zero padding technique. Simulation results demonstrate that the proposed method outperforms existing interpolated DFT methods.
Date of Conference: 28-30 September 2022
Date Added to IEEE Xplore: 16 December 2022
ISBN Information:

ISSN Information:

Conference Location: Cagliari, Italy

Funding Agency:


References

References is not available for this document.