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The Influence of Fast Fourier Transform on the Signal-Spectrum Estimation

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Radiophysics and Quantum Electronics Aims and scope

Abstract

We analyze the accuracy of digital estimation of the signal spectrum. Quantization noise introduced by the analog-to-digital converter (ADC) and fast Fourier transform (FFT) is allowed for. The basic analysis is carried out using the example of a test harmonic signal. The characteristic of the signal-to-noise ratio, called the effective binary word size of a harmonic signal is introduced. Optimal combinations between the ADC word size and the FFT type used are discussed.

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Authors and Affiliations

  1. N. I. Lobachevsky State University, Nizhny Novgorod, Russia

    S. Yu. Medvedev, M. Yu. Perov & A. V. Yakimov

Authors
  1. S. Yu. Medvedev
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  2. M. Yu. Perov
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  3. A. V. Yakimov
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Medvedev, S.Y., Perov, M.Y. & Yakimov, A.V. The Influence of Fast Fourier Transform on the Signal-Spectrum Estimation. Radiophysics and Quantum Electronics 45, 239–245 (2002). https://doi.org/10.1023/A:1015932011243

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  • DOI: https://doi.org/10.1023/A:1015932011243

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