D.M. Petrochenkov1, A.V. Fedotov2, V.A. Pakhomov3, S.V. Yakubovsky4

1–3 Yaroslavl Higher Military School of Air Defense (Yaroslavl, Russia)
4 Research and Testing Center of the Central Research Institute of the Aerospace Defense Troops of the Ministry
of Defense of the Russian Federation (Moscow, Russia)
 

Based on the analysis of the primary processing data of radar information, the parameters of the movement of targets (course, speed, acceleration) are determined, the area of space is identified in which the target is expected to appear in the next survey (extrapolation), the extrapolated coordinates are compared with the newly obtained ones, and the target trajectory is formed. To solve the above tasks, several periods of space survey by the station (at least two) are required with the corresponding time costs. Thus, the development of new methods for determining the parameters of movement of targets with the possibility of reducing the required time (the minimum number of space survey periods) for solving these problems is very relevant. The aim of the work is to develop a method for estimating the absolute value (υ) and the direction of the velocity vector (φυ) of the target for a given spatial configuration of a multi-position passive radar system consisting of three receiving points (RP) and coordinates of a radio emission source (RES) obtained on the basis of coordinometric methods passive location, as well as the measured values ​​of the frequencies of the emitted RES signals in each of the spatially separated receiving points. On the basis of the geometric approach, the indicator is substantiated and an analytical model is obtained that relates the parameters of the spatial configuration of a multi-position passive radar system and RES with the measured frequencies of the emitted signals, which differ at each receiving point due to different Doppler frequency additions. The analytical model forms the basis of the method for solving the problem of estimating the absolute value and orientation of the RES velocity vector. The method can be used in passive multi-position radar systems for monitoring the electromagnetic environment when solving the problem of obtaining radar information (RI) at the stage of secondary processing, in order to reduce the time required to form target trajectories, due to a single-period determination of the absolute value and orientation of the velocity vector of the radio emission source.

Petrochenkov D.M., Fedotov A.V., Pakhomov V.A., Yakubovsky S.V. Method for determining motion parameters of radio emission source in passive emitter tracking multiple radar system. Science Intensive Technologies. 2022. V. 23. № 5. P. 74−80. DOI: https://doi.org/10.18127/j19998465-202205-10 (in Russian)

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