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

Xiangdong Huang; Xiang Gen Xia

doi:10.1109/LSP.2014.2385086

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

Xiangdong Huang, Xiang Gen Xia

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

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 input samples. Some of its statistical properties, such as asymptotical unbiasedness and error variance, are derived. Furthermore, an iterative procedure of frequency estimate is also presented. Simulation results show that the proposed estimator's accuracy is close to those of AM estimator and CO estimator.

Original language	English
Article number	6994847
Pages (from-to)	1055-1059
Number of pages	5
Journal	IEEE Signal Processing Letters
Volume	22
Issue number	8
DOIs	https://doi.org/10.1109/LSP.2014.2385086
Publication status	Published - 1 Aug 2015
Externally published	Yes

Keywords

DFT
frequency estimator
phase difference

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10.1109/LSP.2014.2385086

Cite this

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abstract = "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 input samples. Some of its statistical properties, such as asymptotical unbiasedness and error variance, are derived. Furthermore, an iterative procedure of frequency estimate is also presented. Simulation results show that the proposed estimator's accuracy is close to those of AM estimator and CO estimator.",

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AB - 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 input samples. Some of its statistical properties, such as asymptotical unbiasedness and error variance, are derived. Furthermore, an iterative procedure of frequency estimate is also presented. Simulation results show that the proposed estimator's accuracy is close to those of AM estimator and CO estimator.

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

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Keywords

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