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148 research outcomes, page 2 of 15
  • publication . Article . 2018
    Open Access
    Authors:
    Yu. F. Golovnev; D. A. Nurguleev;
    Persistent Identifiers
    Publisher: St. Petersburg Electrotechnical University LETI

    <jats:p><jats:underline>The basis of spin filter operation is the possibility to obtain different population of states with spins up and down for free electrons. However, in a magnetic macroscopic field, scattering by heavy atoms reduces their population density by 106 ...

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  • publication . Article . 2018
    Open Access Russian
    Authors:
    Roman E. Semernya; Sergey Chernyshev; Artem Vilenskiy; Eduard O. Mozharov;
    Persistent Identifiers
    Publisher: Saint Petersburg Electrotechnical University "LETI"

    <jats:p>This paper considers an algorithm for development of the sixth order compact microstrip bandpass filters with quasi-elliptic characteristics. The proposed technique is applied for synthesis of two filters for the L- and X-band. The recursive computational approa...

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  • publication . Article . 2018
    Open Access Russian
    Persistent Identifiers
    Publisher: Saint Petersburg Electrotechnical University "LETI"

    <jats:p>The object of the study is acoustic metamaterial, which is a steel matrix with a periodic two-dimensional system of cylindrical cavities filled with hydrocarbon mixture. The induced resonances of fluid in cylindrical cavities of the periodic structure are studie...

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  • publication . Article . 2018
    Open Access
    Authors:
    G. N. Tsitsikian; A. I. Senchenko;
    Persistent Identifiers
    Publisher: St. Petersburg Electrotechnical University LETI

    <jats:p>The expediency of developing expressions for mutual inductance of rectangular and square coplanar contours is caused by configuration of frame antennas typical for RFID-technologies. Expressions presented in this article are aimed at simplifying calculation of i...

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  • publication . Article . 2018
    Open Access
    Persistent Identifiers
    Publisher: St. Petersburg Electrotechnical University LETI

    The article provides  characteristics of dispenser cathodes with admixture of nanocarbon particles,  i.e. sulfoadduct of carbon  nanoclusters (Ugleron®), into active material and polyhedral multilayer carbon  nanostructures of the fulleroid  type  and  toroidal  shape  ...

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  • publication . Article . 2018
    Open Access
    Authors:
    A. D. Volodin; A. L. Efimenko; A. V. Gorlin; D. A. Kuzmin;
    Persistent Identifiers
    Publisher: St. Petersburg Electrotechnical University LETI

    <jats:p>Creation of seismic antennas involves production of a system capable to provide synchronous analog-to- digital data signal conversion of all channels and to broadcast digitized signals to the central computing complex (CCC). The article considers a structure of ...

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  • publication . Article . 2018
    Open Access Russian
    Authors:
    Mokhammed A. Al-Ghaili; Alexander N. Kalinichenko; Mokhammed R. Qaid;
    Persistent Identifiers
    Publisher: Saint Petersburg Electrotechnical University "LETI"

    <jats:p>This paper considers one of the challenging tasks during surgical procedure, i.e. depth of anasthesia estimate. The purpose of this paper is to investigate the effect of the analyzed EEG signal fragment duration on the accuracy of anesthesia level estimate using...

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  • publication . Article . 2018
    Open Access
    Authors:
    V. P. Klimentyev; A. B. Sergienko;
    Persistent Identifiers
    Publisher: St. Petersburg Electrotechnical University LETI

    <jats:p>Optimization of iterative algorithms for channel state estimation in a sparse coding multiple-access system (SCMA) is performed to reduce computational costs of the receiver. It is shown that when a signal-to-noise ratio (SNR) does not exceed 10 dB, one iteratio...

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  • publication . Article . 2018
    Open Access
    Authors:
    N. V. Lysenko; A. M. Monchak;
    Persistent Identifiers
    Publisher: St. Petersburg Electrotechnical University LETI

    <jats:p>The approaches to the evaluation of the efficiency of the functioning of heterogeneous video information systems are considered. It is shown that the hierarchy model as a quantitative description of the structural and functional organization can serve as a means...

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  • publication . Article . 2018
    Open Access
    Authors:
    I. V. Gogolev; G. Yu. Yashin;
    Persistent Identifiers
    Publisher: St. Petersburg Electrotechnical University LETI

    <jats:p>In this paper differences between Fisher Information Matrix (FIM) and inverse covariation matrix of normalized correlation estimations for white and colored noise are investigated. It’s shown that implementation of normalized correlation function estimation lead...

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148 research outcomes, page 2 of 15