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A microwave radiometer for measuring signals with a low effective noise temperature

  • Electronics and Radio Engineering
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Abstract

A modulation microwave radiometer using a combined pulse modulation with automatic zero balance control is described. For measurements of signals with a low noise temperature, the radiometer realizes the method of shifting a measurement range toward lower temperatures by using reference noise signals with a high effective temperature. The whole measurement range in a low-temperature region up to 0 K is divided into subranges. The subrange width is 20 K, and the measured resolution is 0.075 K, which corresponds to the fluctuation sensitivity of the radiometer for a 1-s acquisition time.

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Authors and Affiliations

  1. Tomsk State University of Control Systems and Radio Electronics, pr. Lenina 40, Tomsk, 634050, Russia

    A. V. Filatov, N. A. Karataeva & A. G. Loshchilov

Authors
  1. A. V. Filatov
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  2. N. A. Karataeva
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  3. A. G. Loshchilov
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Original Russian Text © A.V. Filatov, N.A. Karataeva, A.G. Loshchilov, 2006, published in Pribory i Tekhnika Eksperimenta, 2006, No. 6, pp. 82–88.

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Filatov, A.V., Karataeva, N.A. & Loshchilov, A.G. A microwave radiometer for measuring signals with a low effective noise temperature. Instrum Exp Tech 49, 817–823 (2006). https://doi.org/10.1134/S002044120606008X

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  • DOI: https://doi.org/10.1134/S002044120606008X

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