Abstract
Fine resolution frequency estimation of a single-tone complex sinusoidal signal in the additive white Gaussian noise is of importance in many fields. In this paper, a generic analytical expression is proposed to refine the residual of a dichotomous search, leading to an estimator with much less iterations than the conventional dichotomous search estimator. Compared with other existing estimators, the proposed estimator has a better trade-off between performance and computational complexity. Simulation results demonstrate that the root-mean-square error (RMSE) of the proposed estimator is closer to the Cramer-Rao lower bound (CRLB) than other estimators over the whole frequency interval when the signal-to-noise ratio (SNR) is above a threshold.
Original language | English |
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Article number | 1840095 |
Journal | Modern Physics Letters B |
Volume | 32 |
Issue number | 34-36 |
DOIs | |
Publication status | Published - 30 Dec 2018 |
Event | 3rd International Conference on Materials Science and Nanotechnology: ICMSNT - Chengdu, China Duration: 29 Mar 2018 → 1 Apr 2018 |