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Mathematical model of instantaneous frequency measuring process of radioemission phasemeasuring sources by interference type devices

Authors: Voitko, V. V.; Ilnytskyi, A. I.;

Mathematical model of instantaneous frequency measuring process of radioemission phasemeasuring sources by interference type devices

Abstract

Formulation of the problem in general. The question of determination of the instantaneous significance of the radio emission sources’ carrier frequency in the conditions of high aprior uncertainty of signal parameters and the limited resource potential of radiomonitoring forces and means is an actual scientific and practical task. Analysis of recent researches and publications. An analysis of existing mathematical models describing the processes of determining the carrier frequency of radio emission sources has shown that they take into account only linear results of measurements. In modern conditions, the task of creating a new generation of informational-measuring technologies, methods, algorithms and procedures becomes a special urgency. Presenting the main material. For the mathematical formalization of the process and the development of a general procedure for determination of the instantaneous significance of the radio emission sources’ carrier frequency, it is advisable to use the method of maximum likelihood. Conclusion. The analytical approach, that is a mathematical formalization of physical processes which take place at determination of estimations of bearing frequency of radioemission sources during the radiomonitoring, is shown in the article. The got analytical expressions can be used for development of new and improvement of existent methods of instantaneous determination of bearing frequency of radioemission sources with further development of devices of their realization. The perspectives of future researches. Solving the problem of obtaining new analytical dependencies during the simulation of processes occurring in devices that carry out mono-pulse bearing of radioemission sources will become the research in the nearest future.

В статье приведен аналитический подход, который является математической формализацией физических процессов, которые происходят при определении оценок несущей частоты источников радиоизлучения во время ведения радиомониторинга. Разработана математическая модель процесса измерения мгновенной частоты источников радиоизлучения фазометрическими устройствами интерференционного типа и решено задание определения структуры соответствующего устройства. Полученные аналитические выражения могут быть использованы для разработки новых и усовершенствования существующих методов мгновенного определения несущей частоты источников радиоизлучения с дальнейшей разработкой устройств их реализации.

У статті наведено аналітичний підхід, який є математичною формалізацією фізичних процесів, що відбуваються при визначенні оцінок несучої частоти джерел радіовипромінювання під час ведення радіомоніторингу. Розроблено математичну модель процесу вимірювання миттєвої частоти джерел радіовипромінювання фазометричними пристроями інтерференційного типу та вирішено завдання визначення структури відповідного пристрою. Отримані аналітичні вирази можуть бути використані для розробки нових і удосконалення існуючих методів миттєвого визначення несучої частоти джерел радіовипромінювання з подальшим розробленням пристроїв їх реалізації.

Keywords

математическая модель; мгновенная частота; источник радиоизлучения; сигнал; устройство; детектор, 621.391, математична модель; миттєва частота; джерело радіовипромінювання; сигнал; пристрій; детектор, mathematical model; instantaneous frequency; sources of radioemission; signal; device; detector

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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