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Combined digital filtering of harmonic content of phase-shift keyed signals in the problem of estimation of the time delay

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Abstract

We propose a two-step method for digital filtering of phase-shift keyed signals filtering in the problem of determination of the time delay during the multichannel propagation. The first step is realized as an information-optimal linear filter with complex coefficients, while the second step, as a quadratic filter based on the minimum-variance criterion. The e.ciency of the proposed method is demonstrated for short PSK signals with various carrier frequencies against the background of additive and multiplicative noise. The developed algorithm can easily be implemented in real time on the basis of a digital signal processor.

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Authors and Affiliations

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

    A. A. Loginov, O. A. Morozov, E. A. Soldatov & S. L. Khmelev

Authors
  1. A. A. Loginov
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  2. O. A. Morozov
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  3. E. A. Soldatov
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  4. S. L. Khmelev
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 50, No. 3, pp. 255–264, March 2007.

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Loginov, A.A., Morozov, O.A., Soldatov, E.A. et al. Combined digital filtering of harmonic content of phase-shift keyed signals in the problem of estimation of the time delay. Radiophys Quantum Electron 50, 235–243 (2007). https://doi.org/10.1007/s11141-007-0020-1

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  • DOI: https://doi.org/10.1007/s11141-007-0020-1

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