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167 research outcomes, page 5 of 17
  • publication . Article . 2019
    Open Access
    Authors:
    K K Vasiliev; Alexey V. Mattis; Oleg V. Saverkin;
    Persistent Identifiers
    Publisher: St. Petersburg Electrotechnical University LETI

    Introduction. Modern air targets, particularly drones, are becoming less noticeable, while their manoeuvrability continues to improve. Trajectory processing algorithms have also been improved in order to provide for effective tracking of highly manoeuvring targets. The ...

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  • publication . Article . 2019
    Open Access Russian
    Authors:
    Valery A. Panchenko; Viktor A. Telegin; Natalia Yu. Romanova;
    Persistent Identifiers
    Publisher: Saint Petersburg Electrotechnical University "LETI"

    Introduction. It was previously reported that small-scale irregularities (SSI) in the polar ionosphere are elongated along the magnetic field and anisotropic in its cross-field direction. At the same time, the largest of the SSI cross-field axes tends to orient along th...

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  • publication . Article . 2019
    Open Access
    Authors:
    Viktor V. Meshcheriakov; Natalia V. Markova; Pavel D. Iurmanov;
    Persistent Identifiers
    Publisher: St. Petersburg Electrotechnical University LETI

    Introduction. The resolution of the problem of radio polarimetry in multiposition microwave screening systems (MMSS) with aperture synthesis requires the use of antennas with a high level of cross-polarization discrimination (XPD) in a wide spatial angle. The radio imag...

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  • publication . Article . 2019
    Open Access Russian
    Authors:
    Evgeniy N. Chervinskiy;
    Persistent Identifiers
    Publisher: Saint Petersburg Electrotechnical University "LETI"

    Introduction. Band-pass filters circuit elements can be calculated by converting low-pass filter (LPF) parameters, which is the prototype of the designed band-pass filter. The conversion causes problems in case calculated values of circuit elements (resistors and capaci...

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  • publication . Article . 2019
    Open Access
    Authors:
    Mozharovskiy, Andrey V.;
    Persistent Identifiers
    Publisher: St. Petersburg Electrotechnical University LETI

    Introduction. Millimeter-wave frequency range can provide utilization of wide transmission frequency bands and therefore a significant increase of the capacity in modern communication systems. One of the main concerns in the design of the 27.5…29.5 GHz-wave communicatio...

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  • publication . Article . 2019
    Open Access
    Authors:
    Andrey Mozharovskiy; Oleg Soykin; Aleksey Andreevich Artemenko; Roman Maslennikov; Irina B. Vendik;
    Persistent Identifiers
    Publisher: St. 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 . 2018
    Open Access
    Authors:
    L. S. Mettus; V. N. Mikhailov; A. B. Khachaturian;
    Persistent Identifiers
    Publisher: St. Petersburg Electrotechnical University LETI

    The article is devoted to the pattern propagation factor of the Earth enabling for more precise determination of the radar station visibility range in case there are reflections from underlying surface. The article provides analytical solution in general form taking int...

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

    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 approach is em...

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  • publication . Article . 2019
    Open Access Russian
    Authors:
    N. V. Mukhin;
    Persistent Identifiers
    Publisher: Saint Petersburg Electrotechnical University "LETI"

    Introduction. Microacoustic sensors based on surface acoustic wave (SAW) devices allow the sensor integration into a wafer based microfluidic analytical platforms such as lab-on-a-chip. Currently exist various approaches of application of SAW devices for liquid properti...

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  • publication . Article . 2019
    Open Access
    Authors:
    N. V. Mukhin; Mykhailo Kutia;
    Persistent Identifiers
    Publisher: St. Petersburg Electrotechnical University LETI

    Introduction. Petroleum is a complex mixture of hydrocarbons. Sulphur is the most common heteroatom in pe-troleum and petroleum products. Its content in oil can reach 14 %. The determination of sulphur in oil and its removal is of great importance, since sulphur compoun...

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167 research outcomes, page 5 of 17