Non-iterative and accurate frequency estimation of a single cisoid using two DFT coefficients
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
| Original language | English |
|---|---|
| Article number | 102652 |
| Journal / Publication | Digital Signal Processing: A Review Journal |
| Volume | 98 |
| Online published | 30 Dec 2019 |
| Publication status | Published - Mar 2020 |
Link(s)
Abstract
An accurate and unbiased frequency estimator is devised in this paper, which utilizes the magnitudes of two mid-bin points around the highest magnitude discrete Fourier transform coefficient to perform sinc function fitting. The computational complexity of our algorithm is O(N log(N)) with N being the data length. Its standard deviation is also analyzed, and is shown to achieve 1.0073 times of the square root of Cramér-Rao lower bound. Simulation results are presented to evaluate the performance of the proposed method via comparison with several benchmarking interpolation based frequency estimation schemes.
Research Area(s)
- Discrete Fourier transform, Frequency estimation, Interpolation, Maclaurin series expansion, sinc function
Citation Format(s)
Non-iterative and accurate frequency estimation of a single cisoid using two DFT coefficients. / Chen, Yuan; Ko, Annie Hin Cheung; Tam, Wing Shan; Kok, Chi Wah; So, Hing Cheung.
In: Digital Signal Processing: A Review Journal, Vol. 98, 102652, 03.2020.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
