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A digital signal converter for radio astronomical systems

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Abstract

A digital signal converter operating in a video frequency band (up to 32 MHz) and intended for radio astronomical equipment is based on an LTC2288 analog-to-digital converter and an XC4VSX25 field programmed gate array. A two-band base band converter improving parameters of the radio interferometric terminal, a two-channel spectrometer minimizing times of observation of radio-frequency sources in spectral lines, and a radiometer for recording signals in a continuum operating under the action of radio interference have been designed using the converter. The advantages of this equipment are confirmed by results of tests at the Svetloe radio astronomical observatory.

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Authors and Affiliations

  1. Institute of Applied Astronomy, Russian Academy of Sciences, nab. Kutuzova 10, St. Petersburg, 191187, Russia

    S. A. Grenkov, E. V. Nosov & L. V. Fedotov

  2. ZAO Radio Electronic Process Equipment, St. Petersburg, Russia

    N. E. Kol’tsov

Authors
  1. S. A. Grenkov
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  2. N. E. Kol’tsov
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  3. E. V. Nosov
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  4. L. V. Fedotov
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Additional information

Original Russian Text © S.A. Grenkov, N.E. Kol’tsov, E.V. Nosov, L.V. Fedotov, 2009, published in Pribory i Tekhnika Eksperimenta, 2009, No. 5, pp. 80–89.

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Grenkov, S.A., Kol’tsov, N.E., Nosov, E.V. et al. A digital signal converter for radio astronomical systems. Instrum Exp Tech 52, 686–694 (2009). https://doi.org/10.1134/S002044120905008X

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  • DOI: https://doi.org/10.1134/S002044120905008X

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