A new algorithm for the estimation of the frequency of a complex exponential in additive Gaussian noise

@article{Reisenfeld2003ANA,
  title={A new algorithm for the estimation of the frequency of a complex exponential in additive Gaussian noise},
  author={Sam Reisenfeld and Elias Aboutanios},
  journal={IEEE Communications Letters},
  year={2003},
  volume={7},
  pages={549-551}
}
The letter presents a new algorithm for the precise estimation of the frequency of a complex exponential signal in additive, complex, white Gaussian noise. The discrete Fourier transform (DFT)-based algorithm performs a frequency interpolation on the results of an N point complex fast Fourier transform. For large N and large signal to noise ratio, the frequency estimation error variance obtained is 0.063 dB above the Cramer-Rao bound. The algorithm has low computational complexity and is well… CONTINUE READING
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