Instruments and Experimental Techniques

, Volume 60, Issue 5, pp 701–704 | Cite as

A calibration system for microwave radiometers based on a modulator–calibrator

  • A. A. Krasilnikov
  • M. Yu. Kulikov
  • V. G. Ryskin
  • L. I. Fedoseev
  • A. A. Shvetsov
  • V. G. Bozhkov
  • O. S. Bol’shakov
Electronics and Radio Engineering

Abstract

A system for automatic internal calibration of millimeter-range radiometers is described. This system is based on an electrically controlled modulator–calibrator, which is a compact solid-state device that combines the functions of a modulator and a source of stable noise calibration signals. Stability of the calibration levels is provided by thermostatting the modulator–calibrator case and stabilization of the control currents. The calibration and data-collection process is governed by software using a special digital module and a personal computer.

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Copyright information

© Pleiades Publishing, Inc. 2017

Authors and Affiliations

  • A. A. Krasilnikov
    • 1
  • M. Yu. Kulikov
    • 1
  • V. G. Ryskin
    • 1
  • L. I. Fedoseev
    • 1
  • A. A. Shvetsov
    • 1
  • V. G. Bozhkov
    • 2
  • O. S. Bol’shakov
    • 1
  1. 1.Institute of Applied PhysicsRussian Academy of SciencesNizhny NovgorodRussia
  2. 2.Research Institute of Semiconductor DevicesTomskRussia

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