V.V. Abramenkov1, O.V. Vasilchenko2, S.A. Klimov3, M. A. Sviridov4

1,3,4 Air Defense Military Academy of the Armed Forces of the Russian Federation
named after Marshal of the Soviet Union A.M. Vasilevsky (Smolensk, Russia)

2 Smolensk branch of JSC NPC Tristan (Smolensk, Russia)

Problem setting. The problem of selecting small-sized moving aerial objects against the background of passive interference is due to the fact that their power significantly exceeds the power of the useful signal, by 60 dB or more. Depending on various factors, the width of the passive interference spectrum may be 10% or more of the frequency band determined by the average pulse repetition rate of the radar. In this regard, there are requirements for the amplitude-frequency response of the selection system: in the region of Doppler frequencies close to zero, it should have a shape close to rectangular; the depth of the cutting zone should be at least 60 dB, and its width should adaptively vary depending on the width of the interference spectrum. The analysis shows that the existing selection methods do not fully meet these requirements.

Target. Substantiation of the method of selection of small-sized moving aerial objects against the background of powerful passive interference and proof of its effectiveness in comparison with similar methods.

Results. A method of selection of small-sized moving aerial objects is proposed. Its higher relative efficiency has been analytically and practically proven. The results were confirmed by processing experimental data from existing radar samples.

Practical significance. The use of the method in radar makes it possible to detect small-sized moving aerial objects with high efficiency against the background of powerful passive interference

Abramenkov V.V., Vasilchenko O.V., Klimov S.A., Sviridov M.A. Substantiation of the method of selection small-sized of moving
aerial objects against the background of powerful passive interference. Radiotekhnika. 2022. V. 86. № 8. P. 5−20.
DOI: https://doi.org/10.18127/j00338486-202208-01 (In Russian)

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