Kui, W, McLernon, D orcid.org/0000-0002-5163-1975, Tu, Y et al. (2 more authors) (2019) A spectrum matching method for accurate frequency estimation of real sinusoids. Review of Scientific Instruments, 90 (4). 045112. ISSN 0034-6748
Abstract
It is well-known that incoherent sampling is detrimental for frequency estimation of a real sinusoid, and the estimation errors get worse when the signal lengths are very short. In this paper, a spectrum matching based frequency estimator is proposed as well as evaluated against other four two-step methods developed to suppress the effect of incoherent sampling. The spectral interference introduced by incoherent sampling is eliminated via a spectrum matching process including modulation and spectral analysis. A further error correction based on Fourier transform is conducted to generate the fine frequency estimate. Simulation results are carried out to show that the proposed method can closely approach the Cramér-Rao lower bound without any error floor, and it can outperform the other four methods particularly for short signal lengths.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | This article is protected by copyright. The following article has been accepted by Review of Scientific Instruments. After it is published, it will be found at https://aip.scitation.org/journal/rsi |
Dates: |
|
Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Robotics, Autonomous Systems & Sensing (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 17 Apr 2019 13:36 |
Last Modified: | 17 Apr 2019 13:36 |
Status: | Published |
Publisher: | American Institute of Physics |
Identification Number: | 10.1063/1.5091024 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:145115 |