Estimation of single-tone signal frequency by using the L-DFT

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Abstract

Frequency estimation of complex sinusoidal signal parameters for mixed Gaussian and impulse noise environment is considered. We assume that the sinusoid has constant amplitude. The first stage in the proposed algorithm is calculation of the L-DFT forms for various parameters. Then, an optimal value of the L-DFT parameter is estimated as a value minimizing the L-DFT energy. Position of the L-DFT maximum calculated for the optimal parameter is used as a coarse frequency estimate. Fine estimation is performed by a recently proposed iterative procedure. Numerical analysis confirms accuracy of the proposed technique. © 2007 Elsevier B.V. All rights reserved.

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Djurović, I., & Lukin, V. V. (2007). Estimation of single-tone signal frequency by using the L-DFT. Signal Processing, 87(6), 1537–1544. https://doi.org/10.1016/j.sigpro.2006.12.017

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