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Reconstruction of the time dependence and signal parameters of far-field extended wideband sources: Part 1. Reconstruction techniques and technical instruments

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Abstract

The problem of reconstructing the time dependence of an extended source in the far zone is considered. It is shown that the time dependence of the source signal is reconstructable in the far zone during acoustic signal recording with a far-field array and in further processing. In this work, possible signal disturbances due to the finiteness of the receiving aperture are estimated and optimal parameters of the signal processing system are determined. A linear array is suggested in the form of digital receiving elements that synchronously record the acoustic field in a band of up to 10 kHz and transfer the received signal through four twisted pairs directly to a PC network card. The technique described in the work and its technical implementation can be used in hydroacoustic measurements and in designing sound-recording systems for orchestras and large choirs.

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Authors and Affiliations

  1. Institute of Applied Physics, Russian Academy of Sciences, ul. Ulyanova 46, Nizhni Novgorod, 603950, Russia

    M. B. Emelyanov, B. M. Salin, M. B. Salin & A. V. Tsiberev

Authors
  1. M. B. Emelyanov
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  2. B. M. Salin
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  3. M. B. Salin
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  4. A. V. Tsiberev
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Correspondence to M. B. Emelyanov.

Additional information

Original Russian Text © M.B. Emelyanov, B.M. Salin, M.B. Salin, A.V. Tsiberev, 2014, published in Akusticheskii Zhurnal, 2014, Vol. 60, No. 5, pp. 567–576.

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Emelyanov, M.B., Salin, B.M., Salin, M.B. et al. Reconstruction of the time dependence and signal parameters of far-field extended wideband sources: Part 1. Reconstruction techniques and technical instruments. Acoust. Phys. 60, 608–616 (2014). https://doi.org/10.1134/S1063771014050042

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  • DOI: https://doi.org/10.1134/S1063771014050042

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