Research Article
Accurate Frequency Estimator of Real Sinusoid Based on Maximum Sidelobe Decay Windows
@INPROCEEDINGS{10.1007/978-3-030-99200-2_4, author={Zhanhong Liu and Lei Fan and Jiyu Jin and Renqing Li and Jinyu Liu and Nian Liu}, title={Accurate Frequency Estimator of Real Sinusoid Based on Maximum Sidelobe Decay Windows}, proceedings={Communications and Networking. 16th EAI International Conference, ChinaCom 2021, Virtual Event, November 21-22, 2021, Proceedings}, proceedings_a={CHINACOM}, year={2022}, month={4}, keywords={Frequency estimation Real sinusoid Windows DFT}, doi={10.1007/978-3-030-99200-2_4} }- Zhanhong Liu
Lei Fan
Jiyu Jin
Renqing Li
Jinyu Liu
Nian Liu
Year: 2022
Accurate Frequency Estimator of Real Sinusoid Based on Maximum Sidelobe Decay Windows
CHINACOM
Springer
DOI: 10.1007/978-3-030-99200-2_4
Abstract
The estimation of real sinusoid frequency is a significant problem in many scientific fields. The positive- and negative-frequency components of a real sinusoid interact with each other in the frequency spectrum. This leads to estimation bias. In this paper, we proposed an algorithm which is based on maximum sidelobe decay (MSD) windows. Firstly, the coarse frequency estimate is obtained by using Discrete Fourier Transform (DFT) and MSD windows. Then the negative-frequency component is removed by frequency shift. At last, the fine frequency estimation is performed by a high-precision frequency estimation algorithm. Simulation results show that the proposed algorithm has higher accuracy and better frequency estimation performance than AM algorithm, Candan algorithm, and Djukanovic algorithm.
