A fine-resolution frequency estimator using an arbitrary number of DFT coefficients

被引：43

作者：

Orguner, Umut ^{[1
]}

Candan, Cagatay ^{[1
]}

机构：

[1] Middle E Tech Univ, Dept Elect & Elect Engn, TR-06800 Ankara, Turkey

来源：

SIGNAL PROCESSING | 2014年 / 105卷

关键词：

Frequency estimation; Cramer-Rao bound; FOURIER COEFFICIENTS; SINGLE; INTERPOLATION;

D O I：

10.1016/j.sigpro.2014.05.013

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A method for the frequency estimation of complex exponential signals observed under additive white Gaussian noise is presented. Unlike competing methods based on relatively few Discrete Fourier Transform (DFT) samples, the presented technique can generate a frequency estimate by fusing the information from all DFT samples. The estimator is shown to follow the Cramer-Rao bound with a smaller signal-to-noise ratio (SNR) gap than the competing estimators at high SNR. (c) 2014 Elsevier B.V. All rights reserved.

引用

页码：17 / 21

页数：5

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