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电信和无线电工程
SJR: 0.203 SNIP: 0.44 CiteScore™: 1

ISSN 打印: 0040-2508
ISSN 在线: 1943-6009

卷:
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电信和无线电工程

DOI: 10.1615/TelecomRadEng.v75.i9.60
pages 811-821

ELECTROMECHANICAL RESONATOR UNDER THE INFLUENCE OF TELEGRAPH UNBALANCED FREQUENCY NOISE

Z. А. Maizelis
O.Ya. Usikov Institute for Radio Physics and Electronics, National Academy of Sciences of Ukraine, 12 Academician Proskura St., Kharkiv 61085, Ukraine; V. Karazin National University of Kharkiv, 4 Svobody Sq,, Kharkiv, 61077, Ukraine

ABSTRACT

For detecting and establishing the nature of frequency noises in the oscillating system, it is very important to separate different types of noises. For determination of characteristics of the frequency noise it is necessary to study statistical properties not of actual coordinate and its derivative, but of oscillator complex coordinate. Its moments do not depend on the amplitude noises that often can prevail in the system. The growing interest to noises of frequency is related to the fact that they determine the loss of coherence of vibrations in many systems, from the devices based on Josephson contacts to the nanomechanical resonators. The knowledge of statistical characteristics of frequency noises inevitably presented in the devices of information read-out in quantum computers will allow correct processing of the information in them. Here the influence of the telegraph unbalanced noise of frequency on the properties of an electromechanical resonator is studied. It is shown that the dependencies of the higher cumulants contain features, which allow one to separate the effects related to the presence of frequency noise. The results may be useful in the theory of nanomechanical resonators, in processing the data, obtained in the radio-technical devices and devices, based on Josephson contacts, in quantum computers, in the estimation of precision of an atomic clock.


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