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13 research outcomes, page 1 of 2
  • publication . Article . 2021
    Open Access
    Authors:
    T. M. Magrupov; Z. M. Yuldashev; S. P. Abdihalikov;
    Persistent Identifiers
    Publisher: St. Petersburg Electrotechnical University LETI

    Introduction. Wireless diagnostics of patients’ functional state is important for ensuring timely detection and treatment of diseases. In this article, the development of a medical hardware-software system for remote monitoring of the state of biological objects is cons...

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  • publication . Article . 2021
    Open Access
    Authors:
    Andrei Monakov;
    Persistent Identifiers
    Publisher: St. Petersburg Electrotechnical University LETI

    Introduction. Range Cell Migration (RCM) is a source of image blurring in synthetic aperture radars (SAR). There are two groups of signal processing algorithms used to compensate for migration effects. The first group includes algorithms that recalculate the SAR signal ...

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  • publication . Article . 2021
    Open Access
    Authors:
    Andrei Monakov;
    Persistent Identifiers
    Publisher: St. Petersburg Electrotechnical University LETI

    Introduction. Random deviations of the antenna phase centre of a synthetic aperture radar (SAR) are a source of phase errors for the received signal. These phase errors frequently cause blurring of the radar image. The image quality can be improved using various autofoc...

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  • publication . Article . 2021
    Open Access Russian
    Authors:
    M. D. Parnes;
    Persistent Identifiers
    Publisher: Saint Petersburg Electrotechnical University "LETI"

    Introduction. Electronically scanned antennas (ESA) appeared about a century ago. Although the methods of their design and production have been sufficiently studied, some individual parameters are yet to be revealed. One of such parameters is the minimum step of movemen...

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  • publication . Article . 2021
    Open Access Russian
    Authors:
    M. D. Parnes;
    Persistent Identifiers
    Publisher: Saint Petersburg Electrotechnical University "LETI"

    Introduction. Large-size phased antenna arrays (PAA) frequently incorporate optical excitation schemes, whose main elements include the feed and the reflective aperture. In turn, the reflective aperture consists of several tens of thousands of radiators and phase shifte...

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  • publication . Article . 2021
    Open Access Russian
    Authors:
    N. V. Minchev;
    Persistent Identifiers
    Publisher: Saint Petersburg Electrotechnical University "LETI"

    Introduction. For hazardous industries, the reliability of information and measuring equipment must ensure an almost complete absence of failure events, with their probability as low as 10-6. This requirement can be satisfied using various approaches, one of which is re...

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  • publication . Article . 2021
    Open Access Russian
    Authors:
    I. A. Kondratyeva; A. S. Krasichkov; O. A. Stancheva; E. Mbazumutima; F. Shikema; E. M.;
    Persistent Identifiers
    Publisher: Saint Petersburg Electrotechnical University "LETI"

    Introduction. The most common method for diagnosing cardiovascular diseases is the method of ECG monitoring. In order to facilitate the analysis of the obtained monitorograms, special software solutions for automated ECG processing are required. One possible approach is...

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  • publication . Article . 2021
    Open Access Russian
    Authors:
    V. G. Mashkov; V. A. Malyshev; P. A. Fedyunin;
    Persistent Identifiers
    Publisher: Saint Petersburg Electrotechnical University "LETI"

    Introduction. Landing is the most challenging and dangerous part of the helicopter flight. The development of systems facilitating safe landing is a priority task for both Russian and foreign engineering companies. Landing on unprepared sites covered with snow and ice m...

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  • publication . Article . 2021
    Open Access
    Authors:
    Nguyen Phung Bao; Quang Hieu Dang;
    Persistent Identifiers
    Publisher: St. Petersburg Electrotechnical University LETI

    Introduction. Requirements for the quality of information about the trajectory of moving objects provided by sensor networks are increasingly becoming more stringent. For Information and Data Processing Centers (DPC) at control and management command posts, the issue of...

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  • publication . Article . 2021
    Open Access Russian
    Authors:
    R. D. Gall;
    Persistent Identifiers
    Publisher: Saint Petersburg Electrotechnical University "LETI"

    Introduction. There are incidences of jamming the users of satellite communication systems, who apply e.g. geostationary relay satellites, and the illegal use of such satellite resources. These actions can be both intentional and unintentional, and, among other things, ...

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13 research outcomes, page 1 of 2