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379 research outcomes, page 1 of 38
  • publication . Article . 2019
    Open Access Russian
    Authors:
    V. I. Veremyev; V. M. Kutuzov; K. S. Plotnitskaya; V. V. Kovalenko; V. A. Telegin;
    Persistent Identifiers
    Publisher: Saint Petersburg Electrotechnical University "LETI"

    Introduction. The modern approach for ensuring marine activities of necessary quality related to the assessment of current information on the state of the ocean environment in Russia is clearly insufficient. The development of operational methods and instruments of obse...

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  • publication . Article . 2020
    Open Access Russian
    Authors:
    V. Yu. Zubarev; B. V. Ponomarenko; E. G. Shanin; A. G. Vostretsov;
    Persistent Identifiers
    Publisher: Saint Petersburg Electrotechnical University "LETI"

    Introduction. Signals constructed on the basis of ensembles of code sequences are widely used in digital communication systems. During development of such systems, the most attention is paid to analysis, synthesis and implementation of periodic signal ensembles. Theoret...

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  • publication . Article . 2020
    Open Access
    Authors:
    S. A. Mokrushina; N. M. Romanov;
    Persistent Identifiers
    Publisher: St. Petersburg Electrotechnical University LETI

    Introduction. Electromagnetic or ionizing radiation (IO) has great influence for radiation resistance of MOSFETs (metal–oxide–semiconductor field-effect transistors) and integrated circuits. Oxide, for the studied samples, is silicon dioxide, which acts as a dielectric ...

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  • publication . Article . 2020
    Open Access Russian
    Authors:
    I. G. Zubov;
    Persistent Identifiers
    Publisher: Saint Petersburg Electrotechnical University "LETI"

    Introduction. Computer vision systems are finding widespread application in various life domains. Monocularcamera based systems can be used to solve a wide range of problems. The availability of digital cameras and large sets of annotated data, as well as the power of m...

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  • publication . Article . 2019
    Open Access Russian
    Authors:
    Andrey Mozharovskiy; Oleg Soykin; Aleksey Andreevich Artemenko; Roman Maslennikov; Irina B. Vendik;
    Persistent Identifiers
    Publisher: Saint Petersburg Electrotechnical University "LETI"

    Introduction. Increased data rate in modern communication systems can be achieved by raising the operational frequency to millimeter wave range where wide transmission bands are available. In millimeter wave communication systems, the passive components of the antenna f...

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  • publication . Article . 2017
    Open Access Russian
    Authors:
    A. D. Grigoriev; B. Djalilov;
    Publisher: Saint Petersburg Electrotechnical University "LETI"

    The various methods of antenna electrical tuning for mobile handsets working in several LTE frequency bands are described. The PIFA-type antenna containing high and low frequency branches is proposed. A tuning element is connected to the low-frequency branch. The propos...

  • publication . Article . 2015
    Open Access Russian
    Authors:
    V. N. Malyshev;
    Publisher: Saint Petersburg Electrotechnical University "LETI"
  • publication . Article . 2015
    Open Access Russian
    Authors:
    V. V. Leontyev; A. A. Pimenov;
    Publisher: Saint Petersburg Electrotechnical University "LETI"

    Low efficiency of using of commercially available marine navigation radars to detect the oil slicks on the sea surface is showed. A new approach to the problem of oil films detection on the sea sur-face by radar at low grazing angles of irradiation is discussed. It's pr...

  • publication . Article . 2016
    Open Access Russian
    Authors:
    I. V. Gogolev;
    Publisher: Saint Petersburg Electrotechnical University "LETI"

    In this paper Cramer-Rao lower bound of joint Doppler stretch and delay estimation for wideband signal is derived. We use wideband term to denote cases in which narrowband signal model is inappropriate. Two alternative estimation methods are considered: first method imp...

  • publication . Article . 2018
    Open Access Russian
    Authors:
    Yana V. Ivanova; G Yakovlev; V. I. Zubkov;
    Persistent Identifiers
    Publisher: Saint Petersburg Electrotechnical University "LETI"

    The paper provides experimental and theoretical study of pHEMT heterostructures with quantum well (QW) AlGaAs/InGaAs/GaAs and delta-doped layer used as active layers for fabrication of 4-18 GHz transistors. As the experimental techniques, the electrochemical capacitance...

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379 research outcomes, page 1 of 38