B.V. Belik – Ph.D. (Eng.), Research Scientist,

JSC «Concern Vega» (Moscow, Russia)

V.I. Merkulov – Dr.Sc. (Eng.), Professor, Deputy Designer General

JSC «Concern Vega» (Moscow, Russia)

V.S. Chernov – Ph.D. (Eng.), Leading Research Scientist,

JSC «Concern Vega» (Moscow, Russia) Email: boris_belik@mail.ru

Problem statement. Currently, considerable attention is paid to the practical application and further improvement of single-position angle-measuring for air-based radio monitoring systems. For the successful functioning of these systems, the observability conditionsmust be met and the coordinates and motion parameters of radio sources must be evaluated with sufficient accuracy.

To solve these problems, various methods of trajectory control of observation have been developed, which is due to the variety of conditions for the practical application of air-based angle-measuring systems and their varying degrees of efficiency. There are two groups of methods of trajectory control of observation. The first group of methods ensures that the observability conditions are met and is based on choosing the type of aircraft trajectory based on heuristic considerations. The second group of methods optimizes the trajectory of the aircraft, which minimizes errors in estimating the state coordinates of the radio source and simultaneously meets the observability conditions. Information about heuristic and optimal trajectory control methods has been published in various scientific journals.

At the same time, there is no reviews in known scientific sources that summarizes the results obtained on the development of various methods of trajectory control of observation in single-position angle-measuring systems.

The purpose of the article is to give a general idea of the developed methods of trajectory control of observation in air-based singleposition angle-measuring radio monitoring systems and ways to solve the problem of ensuring observability conditions and improving the accuracy of estimating the state coordinates of the radio sources in these systems.

Results. A brief description of the known methods of trajectory control of observation is given. The paper presents the types of aircraft trajectories, the movement of which contributes to the fulfillment of observability conditions and increases the accuracy of estimating the state coordinates of the radio sources. The close connection of heuristic methods of trajectory control with specific algorithms for estimating the state coordinates of the radio sources is shown. The results of simulation are presented, indicating the effectiveness of the developed heuristic and optimal algorithms of trajectory control of observation.

Practical significance. The areas of practical application of various types of aircraft trajectories in solving radio monitoring problems are shown. That information can be used choosing rational methods of trajectory control for specific conditions of practical application, as well as when developing new methods of trajectory control.

Belik B.V., Merkulov V.I., Chernov V.S. Methods of trajectory control of observation in air-based single-position anglemeasuring radio monitoring systems. Achievements of modern radioelectronics. 2020. V. 74. № 10. P. 5–29. DOI: 10.18127/j20700784-202010-01 [in Russian].

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