Refinement of optimal interpolation factor for DFT interpolated frequency estimator

K Wu, W Ni, JA Zhang, RP Liu… - IEEE Communications …, 2020 - ieeexplore.ieee.org
Frequency estimation is a fundamental problem in many areas. The previously proposed q-
shift estimator (QSE), which interpolates the discrete Fourier transform (DFT) coefficients by …

Accurate frequency estimation with fewer DFT interpolations based on Padé approximation

K Wu, JA Zhang, X Huang… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Frequency estimation is a fundamental problem in many areas. The well-known A&M and its
variant estimators have established an estimation framework by iteratively interpolating the …

Frequency estimation by interpolation of two Fourier coefficients: Cramér-rao bound and maximum likelihood solution

AA D'Amico, M Morelli, M Moretti - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Sinusoidal frequency estimation in the presence of white Gaussian noise plays a major role
in many engineering fields. Significant research in this area has been devoted to the fine …

A new DFT-based frequency estimator for single-tone complex sinusoidal signals

L Fang, D Duan, L Yang - MILCOM 2012-2012 IEEE Military …, 2012 - ieeexplore.ieee.org
Frequency estimation for single-tone complex sinusoidal signals under additive white
Gaussian noise is a classical and fundamental problem in many applications, such as …

Flexible and accurate frequency estimation for complex sinusoid signal by interpolation using dft samples

J XIANG, W CUI, Q SHEN - Chinese Journal of Electronics, 2018 - Wiley Online Library
A flexible and accurate frequency estimator is first proposed for frequency estimation of a
complex sinusoid weighted with a rectangular window function in additive white Gaussian …

Single-tone frequency estimation by weighted least-squares interpolation of Fourier coefficients

M Morelli, M Moretti, AA D'Amico - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Frequency estimation of a single complex exponential signal embedded in additive white
Gaussian noise is a major topic of research in many engineering areas. This work presents …

A fine-resolution frequency estimator in the odd-DFT domain

Y Dun, G Liu - IEEE Signal Processing Letters, 2015 - ieeexplore.ieee.org
Although many frequency estimation methods are available, few are designed for high-
quality speech and audio processing systems, which typically use the modified discrete …

A fine resolution frequency estimator based on double sub-segment phase difference

X Huang, XG Xia - IEEE Signal Processing Letters, 2014 - ieeexplore.ieee.org
A DFT-based frequency estimator with low computational complexity is proposed, which is
derived by extracting the phase difference from the peak DFT bins of two sub-segments from …

A novel single tone frequency estimation by interpolation using DFT samples with zero-padding

X Jinzhi, S Qing, C Wei - 2016 IEEE 13th International …, 2016 - ieeexplore.ieee.org
A novel algorithm is proposed for frequency estimation of a single complex exponential
signal or a real sinusoid signal in additive white Gaussian noise (AWGN). The proposed …

Analytical solutions for frequency estimators by interpolation of DFT coefficients

JR Liao, S Lo - Signal Processing, 2014 - Elsevier
For the estimation of the frequency of a complex sinusoid, previous methods interpolate DFT
coefficients to obtain the frequency offset. Most of these interpolation methods can be …