A Highly Accurate Iteratively Interpolated Frequency Estimator

Based on the "half stock fence"-interpolated FFT coefficients of a single-tone sequence, this paper presents a novel frequency estimation iteration algorithm starting with the Rife-Jane's estimator, which develops a symmetry frequency offset estimator and employs adaptive adjustment t...

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Bibliographic Details
Main Authors: Huang, Yuchun, Huang, Zailu, Huang, Benxiong, Xu, Shuhua
Format: Conference Proceeding
Language:English
Subjects:
Digital communication
Electronic warfare
Frequency estimation
Frequency synchronization
Interpolation
Iterative algorithms
Noise robustness
Phase estimation
Signal detection
Signal to noise ratio
Online Access:Request full text
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Summary:Based on the "half stock fence"-interpolated FFT coefficients of a single-tone sequence, this paper presents a novel frequency estimation iteration algorithm starting with the Rife-Jane's estimator, which develops a symmetry frequency offset estimator and employs adaptive adjustment technique of the symmetric center. Computer Monte-Carlo simulations show that the algorithm is effective and the proposed estimator outperforms the traditional Rife-Jane's estimator in both accuracy and the CRLB-approximate RMSE of estimation over the whole frequency range. It is also shown that the Rife-Jane's initialized iteration has as lower SNR threshold as to about -12 dB.
ISSN:2161-9646
DOI:10.1109/WiCom.2008.459