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RNF grant 19-79-00303

Development and research of high-precision methods of multi-position radio-optical monitoring for environmental exploration, forecasting and prompt prevention of natural and man-made emergencies

The project has been successfully completed.





The project is carried out with the financial support of the Russian Science Foundation  №19-79-00303

Project results

All planned work has been completed in full.  

The most significant scientific results obtained during the implementation of the entire project are:  

1. A mathematical model of the echo-signal of the underlying surface is proposed, representing a random field, which makes it possible to take into account the spatial and temporal correlation-spectral characteristics of reflections.  

2. Mathematical and simulation models of the formation of the radar environment in the field of view of unmanned aerial vehicles have been developed, including mathematical models of the echo signals of the land, sea and various options for the land-land-sea edge.  

3. An algorithm for the mode of forming a high-precision display of the radar situation in the UAV viewing areas and detecting sensors of environmental and technogenic monitoring systems is synthesized, taking into account the dynamics of the movement of equipment carriers.  

4. A method has been developed for determining the coordinates of detected objects of a small-sized two-position airborne radar with wide antenna patterns and its characteristics have been calculated.  

5. To solve the problems of high-precision mapping, algorithms and functional diagrams of a small-sized multi-position radar have been developed that allow obtaining high-resolution maps with limited antenna device apertures.  

6. A method for classifying objects in the generated images using a neural network based on a two-position onboard optical-location system is proposed.  

7. The issues of information integration in a two-position small-sized radar system to increase the resolution of the system when mapping the underlying surfaces in the forward and anterolateral viewing areas have been studied.  

8. For two-position systems, the requirements for the characteristics of airborne radars and UAV trajectories are defined, which allow achieving the specified sizes of resolution elements in terms of range-azimuth coordinates and, accordingly, increasing the accuracy of determining the coordinates of detected physical objects.  

9. Algorithms have been developed that implement the formation of a complex image of the earth's surface in a multi-position onboard system.  

10. Analyzed and formed the parameters of echo-signals in the space of informational signs, according to which the corresponding algorithm for radar classification of types of underlying earth surfaces was developed.  

11. Modeling algorithms and software have been developed for the operation of a two-position radar system, in which a method for calculating point estimates of the angular position of a physical object and their probabilistic characteristics in a joint resolution element of a two-position system of onboard location stations is implemented.  

12. An algorithm has been developed for combining the generated radar images in the quasi-real time mode with a digital geographic map of the area into a single information field, implemented in small-sized airborne systems for monitoring the earth's surface.  

13. A technique for constructing a digital probabilistic map of the coverage area based on a priori information is proposed and the results of testing the corresponding simulation program for small-sized airborne radars are obtained.

14. A method has been developed to minimize the search time, which is carried out by selecting the appropriate coverage area of the detected object with a given probability and organizing the scanning mode of this area in accordance with the probabilistic digital map of the object's location in the resolution elements of the airborne radar.  

15. Hardware and software and functional diagrams of individual blocks, as well as diagrams of methods that implement the work of a half-life model of an onboard location, have been developed.  

16. Participation in 10 international conferences and forums. Published 22 scientific papers, 12 of which were published in scientific journals included in the international database Scopus and/or WoS. Chapters of the monograph have been prepared, aimed at researchers and developers on the subject of the project.  

17. 2 applications for obtaining patents for an invention, 1 application for obtaining a topology of an integrated circuit and 1 database, as well as 7 certificates of state registration of a computer program that implement the developed methods, schemes, devices, models and programs declared in the project.  

The scientific results of the project, media news and relevant publications are available on the Internet at:

Project participants:

Nenashev Vadim Alexandrovich (R)

Grigoriev Evgeny Konstantinovich (postgraduate student) 

Nenashev Sergey Alexandrovich (student)

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