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Modern wide development of science and technology causes the growth of information needs in all branches of human development. At present, there are all opportunities to increase information security by combining sources of information into a single system. At the same time, when merging, specific difficulties and features emerge, which together make it difficult to implement the proposed solutions. The paper considers the peculiarity of combining different types of radar stations into a single information system. Errors of measurements of separate parameters and their influence on system characteristics are considered. Options for solving the problems that have arisen are proposed.

The paper considers the issues of assessing the effectiveness of air reconnaissance of ground (sea) objects by unmanned aerial vehicles. It is established that the main factors influencing the ability of air reconnaissance are the payload of the drone, the height and speed of its flight, the ability to transmit the information received. The main definitions that are the basis of the obtained results are given. Tasks for further research are set.

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