Кафедра мікропроцесорних технологій і систем (МТС)

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https://openarchive.nure.ua/handle/document/6602

Перегляд

Перегляд Кафедра мікропроцесорних технологій і систем (МТС) за темою "Aircraft responder"

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  • Зображення мініатюри
    Публікація
    Interference Immunity Assessment Identification Friend or Foe Systems
    (Springer, 2021) Свид, І. В.; Обод, І. І.; Мальцев, О. С.
    In the work, based on the consideration of the place and role of Identification friend or foe (IFF) systems in the airspace control system, it is shown that the principle of building modern IFF systems in the form of an asynchronous network for transmitting request and response signals and the implementation of the principle of servicing request signals based on an open single-channel queuing system with refuses, as well as the use of primitive coding of request signals and response signals do not allow an acceptable level of information support for the air control space and air traffic control in conditions of significant intensities of intra-systemic, as well as deliberate correlated and uncorrelated interference. A general description of the considering information systems is given and a brief description of the signals used in IFF systems is given. Based on the presentation of IFF systems in the form of two-channel systems for transmitting request and response signals, the noise immunity of aircraft re-sponders is evaluated under the action of request signals and intentional as well as unintended (intrasystem), correlated and uncorrelated interference in the request channel, which made it possible to evaluate the noise immunity of the entire IFF system in the form estimates of the probability of detection of airborne objects by the considering system.
  • Зображення мініатюри
    Публікація
    Quality Assessment of Measuring the Coordinates of Airborne Objects with a Secondary Surveillance Radar
    (Springer, 2021) Семенець, В. В.; Свид, І. В.; Обод, І. І.; Мальцев, О. С.; Ткач, М. Г.
    Based on a brief review of the place and role of Secondary Surveillance Radar (SSR) in the information support of airspace control and air traffic control systems, it is shown that the principle of constructing aircraft responders and SSRs as a whole predetermined the low quality of information support for the systems under consideration under the influence of intrasystem and deliberate interference. A brief description of the tasks solved by the considered information tools is given, as well as quality of information support integral indicator, the quality of which can be the probability of information support, which is defined as the product of the probability of detecting the airborne object of the requester, the probability of correctly receiving on-board information and the probability of combining flight and coordinate information. The effect of deliberate and unintended (impulse and fluctuation) interference on the quality of the assessment of measuring the range and azimuth of an air object by the considered information tool is evaluated. Based on the assessment of the influence of destabilizing factors, it is shown that in order to obtain higher accuracy in the range and azimuth measuring in the SSR, it is necessary to ensure a responder availability coefficient close to unity and high probabilities of detecting single pulses of response signals. It is shown that improving the quality of SSR information support can be achieved by searching for methods to reduce the influence of intentional and unintentional interference on the aircraft responder readiness coefficient, which is possible by changing the principle of service of request signals.