V.A. Nenashev1, A.R. Bestugin2, I.A. Kirshina3, E.A. Antokhin4

1–4 Saint-Petersburg State University of Aerospace Instrumentation (St. Petersburg, Russia)

1 nenashev.va@yandex.ru, 2 fresguap@mail.ru, 3 ikirshina@mail.ru, 4 fresguap@mail.ru

Spatially distributed radar systems are increasingly used in the survey of the Earth's surface to provide real-time operational search and automatic recognition of physical ground objects. Each small-size radar station of the spatially distributed system should provide high resolution of the formed radar frame for the front viewing areas of small-size airborne radars. This resolution should be comparable to the resolution of optical frames registered in optical localisation video vision systems.  At the same time, such vision systems should be able to operate in difficult weather and seasonal conditions of limited visibility.

The purpose is to develop a methodology for the formation of a stream of radar frames with a high frequency of their succession for the operational display of the radar situation in the forward viewing areas of airborne radars, combined in a group and operating in real-time modes.

Development and research of this methodology will allow to display on the operator's screen a stream of radar frames of high resolution and with high frequency of their succession, to which new and modified algorithms of territory classification and recognition of physical ground objects can be applied. This result will increase the informativeness, completeness and reliability of the displayed radar situation, as well as - reduce the time to search for physical ground objects, increase the reliability of their recognition in automatic mode of observation by a group of small-sized airborne radars.

The new technique, which provides prompt and highly accurate monitoring of the Earth's surface, is designed for emergency search of physical ground objects, in particular, people who have got into the zone of emergency situations as a result of natural and man-made disasters. The implementation of this technique will make it possible to carry out a timely search in a number of emergency situations that pose a special danger to human life, to find them promptly and thereby save many lives and health of people.

Nenashev V.A., Bestugin A.R., Kirshina I.A., Antokhin E.A. Formation of radar frame flow in a spatially distributed system of small-size airborne radar systems. Achievements of modern radioelectronics. 2024. V. 78. № 3. P. 59–69. DOI: https://doi.org/ 10.18127/j20700784-202403-07 [in Russian]

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