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## Stability Investigation of the Tri-Band Cryogenic Receiving Focal Unit Using the Allan Variance

Transactions of IAA RAS, issue 33, 3–21 (2015)

Keywords: radiometer output stability, Allan variance, cryogenic radiometer, noise signal analysis, flicker-noise, drift, measurement dead time, corrected Allan variance

### Abstract

The paper is concerned with the investigation technique of output stability of cryogenic receiving focal unit (CRFU) of tri-band receiving system for the new 13 m radio telescopes of IAA RAS. Stability investigation is conducted using the Allan variance and power spectral density calculations. The Allan variance correction technique and its application for wideband noise measurements using swept spectrum analyzer are presented. Time stability intervals optimal averaging times and noise fluctuation types of output signals are obtained for CRFU and used reg-istration systems also. The influence of cryogenic temperatures on CRFU output signals is considered using correlation analysis, cryogenic temperatures stability is investigated also using the Allan variance.

### Citation

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Yu. V. Vekshin, A. P. Lavrov. Stability Investigation of the Tri-Band Cryogenic Receiving Focal Unit Using the Allan Variance // Transactions of IAA RAS. — 2015. — Issue 33. — P. 3–21. @article{vekshin2015, abstract = {The paper is concerned with the investigation technique of output stability of cryogenic receiving focal unit (CRFU) of tri-band receiving system for the new 13 m radio telescopes of IAA RAS. Stability investigation is conducted using the Allan variance and power spectral density calculations. The Allan variance correction technique and its application for wideband noise measurements using swept spectrum analyzer are presented. Time stability intervals optimal averaging times and noise fluctuation types of output signals are obtained for CRFU and used reg-istration systems also. The influence of cryogenic temperatures on CRFU output signals is considered using correlation analysis, cryogenic temperatures stability is investigated also using the Allan variance.}, author = {Yu.~V. Vekshin and A.~P. Lavrov}, issue = {33}, journal = {Transactions of IAA RAS}, keyword = {radiometer output stability, Allan variance, cryogenic radiometer, noise signal analysis, flicker-noise, drift, measurement dead time, corrected Allan variance}, pages = {3--21}, title = {Stability Investigation of the Tri-Band Cryogenic Receiving Focal Unit Using the Allan Variance}, url = {http://iaaras.ru/en/library/paper/1045/}, year = {2015} } TY - JOUR TI - Stability Investigation of the Tri-Band Cryogenic Receiving Focal Unit Using the Allan Variance AU - Vekshin, Yu. V. AU - Lavrov, A. P. PY - 2015 T2 - Transactions of IAA RAS IS - 33 SP - 3 AB - The paper is concerned with the investigation technique of output stability of cryogenic receiving focal unit (CRFU) of tri-band receiving system for the new 13 m radio telescopes of IAA RAS. Stability investigation is conducted using the Allan variance and power spectral density calculations. The Allan variance correction technique and its application for wideband noise measurements using swept spectrum analyzer are presented. Time stability intervals optimal averaging times and noise fluctuation types of output signals are obtained for CRFU and used reg-istration systems also. The influence of cryogenic temperatures on CRFU output signals is considered using correlation analysis, cryogenic temperatures stability is investigated also using the Allan variance. UR - http://iaaras.ru/en/library/paper/1045/ ER -